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My existing mobile app works functionally, but its speed is holding it back. The most noticeable pain points are the delays when users move from one screen to the next and the time it takes to pull fresh data from the server. These slow-downs create a poor first impression and hurt engagement, so the goal of this job is a focused performance overhaul—no UI redesigns or new feature work, just making what is already there run fast and smoothly. You will start by profiling the codebase to pinpoint bottlenecks during screen-to-screen navigation and during remote data calls. From there, implement the most effective fixes: optimizing queries, introducing smart caching or pagination where it makes sense, trimming heavy assets, and cleaning up any non-essential processing that runs on the main thread. Feel free to suggest additional best-practice techniques; I’m open to any approach that measurably improves responsiveness. Acceptance criteria • Average navigation transition reduced to under 1 second on mid-range devices. • Data fetches (same test data set) complete in under 500 ms on a standard 4G connection. • No new crashes or regressions introduced; existing functionality remains intact. • A concise report outlining the changes made, tools used for profiling, and before/after metrics. The repository is on GitHub with a clean commit history, and I can give you access to staging servers for load testing. Let me know your preferred stack of profiling tools, any preliminary questions, and an estimated timeline for delivering the optimized build.
Project ID: 40652869
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Hi, This is Denis. we already have discussed about project. I can start working right now. please hire me. thanks.
$200 AUD in 7 days
6.0
6.0
109 freelancers are bidding on average $138 AUD for this job

Hi, I can help with a focused performance pass on your existing app without touching the UI or adding feature bloat. I’d start by profiling screen transitions and remote calls, then optimize the main bottlenecks around rendering, threading, caching/pagination, and request handling. I’ll also make sure the work is regression-safe and provide a short before/after metrics report at the end. If you want, I can also share the profiling approach I’d use for this through the platform chat.
$230 AUD in 7 days
9.4
9.4

As a full-stack developer with extensive experience in mobile development, including both native Android and iOS, I am confident that I can revamp your mobile app for optimal performance. My proficiency in Flutter will be particularly beneficial for this task as I can ensure maximum efficiency by enhancing queries, introducing smart caching, and trimming heavy assets to make your app run fast and smooth. What sets me apart from others is my ability to provide end-to-end solutions - from meticulous code analysis to the actual implementation. My commitment to clean, scalable code alongside a business-focused development approach will guarantee that existing functionalities remain intact while resolving performance issues. Plus, my knowledge of backend systems and REST APIs will certainly prove valuable in improving data fetch times. Lets chat
$100 AUD in 7 days
8.9
8.9

Hi, I reviewed your mobile app performance issue: screen-to-screen navigation is slow and server data calls take too long. You want a focused overhaul to keep existing features intact and remove delays, without any UI redesign. I’ll profile the PHP app codebase to pinpoint bottlenecks in Mobile App Audit areas, especially during navigation and remote data calls. Then I’ll optimize queries, add smart caching or pagination where it makes sense, trim heavy assets, and move non-essential work off the main thread while keeping App Development behavior unchanged. You’ll get a concise before/after metrics report with tools used, plus a stable optimized build with no new regressions. Let’s discuss here now.
$150 AUD in 7 days
8.5
8.5

Hi there, we can profile your existing mobile app to identify navigation and API bottlenecks, then optimize queries, caching, pagination, asset loading, and background processing without changing the UI or adding unnecessary features. We’ll use profiling tools to establish before/after metrics, thoroughly test on mid-range devices and staging, and provide a concise performance report with all changes documented. Can you share the GitHub repository and current app stack so we can review the bottlenecks and estimate the timeline? Kindly send me message to discuss more or directly award me. Thank you!
$130 AUD in 2 days
8.4
8.4

I’ll focus this engagement on measurable performance improvements, without changing the UI or adding features. I’ll first profile screen-to-screen navigation and remote data calls using Android Studio CPU/Network Profiler, Perfetto, and Firebase Performance where applicable. I’ll compare traces on a mid-range device and test API response times against your staging environment. Based on the findings, I’ll optimize slow SQL/API queries, remove unnecessary main-thread work, and add appropriate caching, pagination, request batching, or lazy loading. I’ll also review image and other heavy assets, inspect memory usage, and check for redundant rendering or processing during transitions. For PHP backends, I can review database indexes, query plans, serialization, and server-side caching as well. I’ll validate the existing flows after each change, run regression and load tests, and provide a concise report with profiling tools, before/after metrics, and any remaining recommendations. The target will be navigation under 1 second and data fetches under 500 ms on the specified test conditions. I can deliver an optimized build and report within 3 days after GitHub and staging access are available. Is the current mobile client native Android, React Native, or Flutter? Muhammad Saad
$100 AUD in 3 days
8.1
8.1

Hi, I can help optimize your existing app without changing the UI or functionality. I’ll first profile the app to find the actual bottlenecks, then optimize API calls, queries, caching, pagination, assets, and background/main-thread processing. For profiling, I can use Android Profiler/Perfetto and network/API testing tools, depending on the app stack. I’ll test on mid-range devices and staging, compare before/after results, and provide the requested performance report. I have 10+ years of development experience. Please share the app framework/technology and confirm whether the backend/API code is also available. Estimated timeline: 4–6 days. Thank you Regards, Sai
$130 AUD in 4 days
7.8
7.8

Hi, I’ve read your brief carefully, and this is exactly the kind of focused Android performance work I handle, profiling real bottlenecks, improving screen transitions, and reducing server-response delays without disturbing existing functionality. I can audit the app, trace main-thread work, review data flow and network calls, optimize caching/pagination where needed, and tune heavy assets or queries so the build feels fast and stable on mid-range devices. My experience with Mobile App Development and PHP-backed apps helps me improve both client-side responsiveness and backend-driven fetch performance. I’ll benchmark current behavior, apply targeted fixes, test for regressions, and provide a concise before/after report with the profiling tools used and measurable results against your acceptance criteria. I can start after GitHub/staging access is shared and deliver the optimized build plus report within 7 days. Which matters most for this Android optimization first: navigation latency, API fetch speed, or both equally under real user conditions? Best regards, KANIKA
$250 AUD in 7 days
6.9
6.9

Hi there, To address your app's performance issues, I'll begin by profiling the codebase to identify bottlenecks related to screen transitions and data fetching. Optimizing queries and implementing smart caching will be priorities, ensuring navigation is under 1 second and data fetches are completed in under 500 ms. With access to the GitHub repository and staging servers, I can deliver effective solutions that enhance user experience without any redesign or additional features. Your satisfaction is my priority, and I guarantee that I will deliver you a high-quality result. Regards, Ali
$100 AUD in 1 day
6.3
6.3

Hello There! I’m Md Toriqul Islam, an experienced mobile developer specializing in performance optimization, API integration, caching, database optimization, profiling, and responsive application architecture. I understand you need a focused performance overhaul to reduce screen navigation delays and server data-fetch times without changing the existing UI or functionality. I’ll profile the app first, identify bottlenecks, then apply measurable optimizations. I’m skilled in Android/iOS, Flutter, React Native, API optimization, caching, pagination, database queries, and performance profiling. I can use tools such as Android Profiler, Xcode Instruments, Flutter DevTools, and network profiling tools depending on your app stack. Looking forward to hearing from you. Best regards, Md Toriqul Islam
$100 AUD in 3 days
6.1
6.1

Hello, I hope this message finds you well. I have carefully reviewed the requirements for optimizing your mobile app's performance, focusing on enhancing speed and responsiveness without altering the current features or UI design. My expertise in PHP, Mobile App Development, Android, and Mobile Development positions me as a suitable candidate for this project. To address the speed issues, I propose a structured approach starting with a comprehensive codebase profiling to identify performance bottlenecks during navigation and data retrieval. Subsequently, I will implement tailored solutions such as query optimization, caching strategies, and thread optimizations to enhance the app's overall performance. With a commitment to achieving the set acceptance criteria, I will ensure that navigation transitions are under 1 second, data fetches complete within 500 ms, and the app's stability remains intact. I will provide a detailed report outlining the optimizations made, profiling tools utilized, and performance metrics before and after the enhancements. I am eager to discuss your project further and finalize the scope to commence work promptly. You can view my previous work in my portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ What is your preferred timeline for delivering the optimized build? Best regards, Muhammad Anas Khan
$90 AUD in 4 days
5.8
5.8

The useful starting point here is profiling rather than applying generic caching or optimization fixes. I’d trace screen transitions and remote requests first, using device profiling plus network timing to identify whether the delays come from rendering, main-thread work, API queries, payload size, or repeated requests. Then I’d target the actual bottlenecks and validate them against your under-1-second navigation and under-500 ms fetch targets without changing existing behavior. What mobile framework is the app currently built with?
$250 AUD in 7 days
5.9
5.9

Hello! This is Temo, and I see you're looking to optimize the performance of your mobile app. I understand that while your app functions well, its speed is a significant issue that needs addressing. With around 15 years of experience in mobile app development, I can help identify bottlenecks and implement effective solutions, possibly using profiling tools to monitor performance and optimize code efficiently. I'd start by analyzing the current app performance metrics to pinpoint the exact areas slowing it down, before moving to optimize the backend and refine the app's architecture. Q1: What specific performance metrics are you currently tracking, and which ones are most concerning to you? Q2: Are there any specific devices or operating systems where the performance issues are more pronounced? Q3: Do you have a timeline for implementing these performance enhancements? I'm ready to dive in and make your app faster.
$200 AUD in 2 days
6.6
6.6

I can focus specifically on improving your app’s performance without changing the existing UI or functionality. I’ll profile navigation and API/data-fetch bottlenecks, then optimize queries, caching, pagination, assets, and main-thread processing where needed. I’ll benchmark before and after, test on mid-range devices and 4G conditions, and ensure there are no regressions or crashes. I’ll also provide a concise report with the profiling tools, changes, and performance results. I’m ready to review the GitHub repository and start immediately. Best regards, Adeel
$50 AUD in 2 days
6.0
6.0

The bottleneck is the screen-to-screen navigation delays and slow data retrieval in the mobile app. The root cause is inefficient query handling and heavy processing on the main thread. I will profile with PHP and mobile app development tools, optimize queries, implement caching or pagination, and trim heavy assets to reduce main thread load. These changes will improve responsiveness and reduce navigation to under 1 second and data fetch to under 500 ms. I will validate performance improvements with load tests on staging servers and detailed profiling reports. Which profiling tools and data sets have you tried so far for the performance bottlenecks?
$500 AUD in 7 days
5.6
5.6

Hi, I’ve handled similar mobile performance work where the app was functionally complete but navigation and server responses created noticeable friction. The key challenge is finding whether the delay comes from rendering, network calls, queries, or main-thread processing rather than optimizing blindly. I’d profile the existing build first, establish before/after metrics, then target the highest-impact bottlenecks with caching, query optimization, pagination, asset cleanup, and background processing. I’ll test on representative devices and staging, preserve existing functionality, and provide the optimized build with a concise performance report and measurable results. Best Regards, Muhammad Saad K
$70 AUD in 3 days
5.5
5.5

Hello, I can profile your mobile app, pinpoint the bottlenecks in screen navigation and server data calls, and apply focused fixes like query optimization, caching, pagination, and moving heavy work off the main thread. I can start today. For profiling I will use Android Profiler or Flipper, depending on your stack, and share before/after metrics against your 1-second and 500ms targets. Questions: 1) Is the app native Android, React Native, or Flutter? 2) Which backend and database power the remote data calls? Looking forward to discussing further. Regards, Shayan.
$33 AUD in 3 days
5.4
5.4

✋ Hi There!!! ✋ THE PROJECT GOAL: OPTIMIZE APP PERFORMANCE FOR FASTER NAVIGATION AND DATA FETCHING. The performance requirements are clear, with focus on measurable improvements without changing existing functionality. 1. Profile the app to identify navigation and remote data bottlenecks. 2. Optimize queries, caching and pagination for faster server responses. 3. Reduce heavy assets and unnecessary main-thread processing. 4. Test performance on mid-range devices and standard 4G conditions. 5. Provide before and after metrics with a concise optimization report. Similar mobile performance projects have been completed involving profiling, API optimization, caching, crash prevention and responsive performance improvements. <-- Questions --> 1. Which mobile framework and backend technology does the current app use? 2. Do you already have baseline profiling metrics from staging? Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$30 AUD in 7 days
5.1
5.1

I’ve optimized navigation and network performance in mobile apps by profiling with Android Profiler, Flipper, and Charles Proxy, then applying query caching via Room, image trimming with Glide’s disk caching, and deferring main-thread work with coroutines. I’ll profile the app’s navigation and API calls to isolate delays, implement caching for repeated data fetches and screen transitions, and offload heavy processing to background threads. SQLite query optimization and Retrofit interceptors will target the 500ms fetch target. Before pushing changes, I’ll validate on staging with load tests to ensure no regressions. Thanks, Andrii.
$200 AUD in 4 days
5.1
5.1

From your job description, it sounds like slow screen transitions and data fetching are hurting engagement. The main challenge is not just speed, but making the app feel consistently fast without affecting existing functionality. I'll do: * Profile navigation and API bottlenecks * Optimize queries and caching * Reduce heavy assets and main thread work Q: Is the app built with native iOS/Android, Flutter, or React Native? I can also share a relevant case study or quick performance plan. Regards
$90 AUD in 9 days
5.1
5.1

Navigation stutter and delayed screen mounting occur when remote API responses trigger unindexed state recalculations or heavy payload deserialization directly on the main UI thread. I profile thread execution using Android Studio Profiler and network trace inspectors, offloading data serialization to background workers and adding client side memory caching with cursor based pagination. Database queries and backend payloads are trimmed to essential response shapes, removing frame drops during transitions and keeping API responses well under the target threshold on mid tier hardware. Is the mobile client native Android Java/Kotlin, or built with a cross platform framework like React Native or Flutter?
$200 AUD in 3 days
4.8
4.8

Farmborough Heights, Australia
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