Fix React Native Performance Issues — Without Re-launching Your Site
React Native & Flutter shipped to both stores
What you're seeing
Frames drop on scroll, JS thread is saturated, and bridge calls block your animations on mid-range Android.
Our approach
We profile with Flipper + Hermes traces, move heavy work to native modules or worklets, and shrink your render scope until the app hits 60fps on Android budget phones.
Symptoms teams come to us with
- Frames drop on scroll and animations feel janky
- Builds fail with cryptic Xcode or Gradle errors on CI
- Crash-free rate is slipping on the Play or App Store
- An upgrade or store submission keeps getting blocked
What we check first
- 01JS-thread saturation, bridge calls and un-recycled lists
- 02Native dependency, Podfile and Gradle version mismatches
- 03Real-device crash classes hidden from the simulator
- 04Signing, provisioning and store-review blockers
What you get
Concrete deliverables, no fluff
Every engagement ends with measurable, documented outcomes — no black-box agency reports.
Reproduction of the bug or perf issue on a real device
Implementation behind a PR you review
Verified fix on iOS and Android (real hardware, not just simulator)
Release notes + App Store / Play Store update checklist
From brief to shipped fix
A transparent, low-risk process — a senior engineer reads your brief personally, and nothing starts until you approve a written plan and price.
Diagnose
A senior engineer reviews your brief, reproduces the issue, and pinpoints the real root cause — not the symptom — before any code is touched.
Scoped plan & quote
You get a written plan to fix React Native Performance Issues, a firm timeline, and a fixed quote. Nothing starts until you approve it — no surprise invoices.
Ship the fix
We implement on a branch and open a pull request you review, working to your code-review standards on your repo — never a black box.
Verify & hand off
We verify on staging and production, share before/after evidence where it applies, and leave you a short hand-off note so the fix sticks.
Why teams hand this task to Krapton
Senior engineers only
Your brief is read and handled by a senior engineer — no junior hand-off, no sales-rep filter in between.
Root cause, not a patch
We reproduce and fix the underlying cause, then add a guard so the same class of issue does not quietly return.
Your repo, your standards
Every change lands as a pull request you review, on your repository, following your existing review process.
NDA on day one
Confidentiality and IP are covered before we look at a single line of code. All work stays in your accounts.
Fixed quote up front
You approve a written plan and price before work starts. If scope changes, we re-quote in writing — no surprise invoices.
Proof, where it applies
Performance, SEO and reliability work ships with before/after evidence so the result is measurable, not anecdotal.
Three ways to engage
No retainer required. Pick the model that matches the work — pricing for this task starts from $2,500, with a fixed quote before anything starts.
Per task
Most popularOne clearly-scoped fix at a fixed price. Best when you know exactly what is broken and want it handled end to end.
- Fixed quote up front
- One PR, reviewed by you
- No retainer required
Hourly
Pay only for the hours worked. Best for diagnostics, audits, or exploratory work where the scope is still emerging.
- Weekly timesheets
- Pay for what you use
- No minimum commitment
Per sprint
A focused 1–2 week sprint when the work is bigger than one fix but smaller than a full project.
- 1–2 week blocks
- Clear sprint goal
- Scale up or stop anytime
Tooling we use
Industry-standard stack, no proprietary lock-in
Fix React Native Performance Issues — your questions, answered
How much does it cost to fix React Native Performance Issues?
Pricing starts from $2,500 and depends on the scope we find during the diagnostic. You get a fixed, written quote before any work begins — most engagements like this run 2–8 weeks.
How long does it take to fix React Native Performance Issues?
Typically 2–8 weeks for a focused engagement. After a short diagnostic we commit to a firm timeline so you know exactly what to expect.
Will you work directly on our existing codebase?
Yes. We work on your GitHub, GitLab or Bitbucket, ship every change as a pull request you review, and follow your code-review standards — not ours.
What exactly will I have at the end?
Concrete, documented outcomes — Reproduction of the bug or perf issue on a real device, Implementation behind a PR you review, Verified fix on iOS and Android (real hardware, not just simulator), and more. No black-box agency report.
How quickly can you start, and do you sign an NDA?
For a focused task like this we can usually start within 24–48 hours of the brief. We sign an NDA on day one, before we look at any code — yours or ours.
Do you test on real devices, not just the simulator?
Always. Mobile bugs and jank usually only show up on real hardware, especially mid-range Android, so we reproduce and verify on physical devices before we call anything fixed.
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Let's get this off your plate
Send a 60-second brief on Fix React Native Performance Issues and a senior engineer replies within 24 hours with a plan and a fixed quote. NDA on day one, no retainer required.