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Performance optimization

Finding what makes your app slow, fixing it, and measuring the result.

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What this service covers

Slow software loses users and costs more to run. We find where time actually goes, using profiling, tracing and real-user data rather than guesswork, and fix the biggest bottlenecks first.

Work usually spans the stack: front-end bundle size and rendering, API response times, database queries, caching and infrastructure sizing.

Every engagement starts and ends with measurements, so you see the before and after in numbers, and monitoring stays in place to stop things drifting back.

What you get out of it

The results clients typically see. We agree the measures that matter to you during discovery.

  • 01

    Core Web Vitals passing

    LCP, INP and CLS brought within Google’s thresholds on real users’ devices.

  • 02

    API p95 latency cut by half or more

    Typical result from query, caching and code fixes on the slowest endpoints.

  • 03

    Lower infrastructure cost

    Faster code often means fewer servers for the same traffic.

How the engagement runs

A typical performance optimization engagement, start to finish. You see working results every week.

Stack we use most often

  • Lighthouse
  • WebPageTest
  • Chrome DevTools
  • k6
  • OpenTelemetry
  • Datadog
  • Redis
  • Cloudflare

We fit in with what your team already runs.

  1. 1

    Measure

    1 week

    Baseline real-user and synthetic metrics, profile hot paths.

  2. 2

    Fix

    2–4 weeks

    Ship the highest-impact fixes first, measuring each.

  3. 3

    Guard

    1 week

    Budgets and alerts so performance does not regress.

Deliverables

What you receive, all in your own accounts.

  • Baseline performance report
  • Profiling of front end, API and database
  • Prioritised list of fixes with expected impact
  • Implemented optimisations
  • Load test results before and after
  • Performance budgets enforced in CI

FAQ

Common questions about performance optimization

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Talk to an engineer about performance optimization

A 30-minute call with a senior engineer. You leave with a rough plan, a timeline and a price range, whether or not we work together.

Book a callSee our work
  • Reply within one business day
  • NDA on request
  • Senior engineer on every call