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Performance Optimization That Is Measured, Not Guessed

Profiling, database and query tuning, caching, Core Web Vitals, and load testing — every change benchmarked before and after. We optimize what the data proves is slow, then prove the fix worked.

When slow starts costing you

Slow software bleeds in ways that are easy to miss until they add up. Users abandon a checkout that takes too long to load. Search rankings slip because Core Web Vitals fail. The cloud bill climbs because inefficient queries burn compute you should not need. The app falls over during the one traffic spike that mattered — a launch, a campaign, a seasonal rush — and the outage is far more expensive than the optimization would have been. Meanwhile the team keeps adding hardware to paper over a problem that is really in the code.

Performance optimization stops the bleeding with measurement. We profile the real system under real load, find where the time and money actually go, fix the highest-impact bottlenecks, and benchmark the result so the win is documented in numbers. No throwing servers at the problem and hoping.

What we optimize

  • Profiling — CPU, memory, and allocation profiling under realistic load to locate the real hot paths
  • Database tuning — indexing strategy, query rewrites, EXPLAIN-plan analysis, and schema adjustments
  • Killing N+1 queries, full table scans, and unbounded result sets that quietly dominate latency
  • Caching — application, query, HTTP, and CDN layers, with sane invalidation that does not serve stale data
  • Connection pooling, concurrency, and resource limits tuned so the system degrades gracefully
  • Frontend Core Web Vitals — LCP, INP, and CLS — via image, font, and bundle optimization
  • Code splitting, lazy loading, and removal of render-blocking and unused JavaScript
  • Server-side rendering, streaming, and edge caching for faster first paint
  • Load testing — modeling expected and peak traffic to find breaking points before users do
  • Observability — dashboards, percentile latency tracking, and alerting so regressions get caught early

Our methodology

Performance work without measurement is superstition. We start by establishing a baseline — the same scenarios run against the current system so there is a number to beat. Then we profile to find where the time actually goes, because the bottleneck is almost never where intuition says it is. We fix the highest-impact issue first, re-benchmark, and repeat. Each change is justified by the metric it moves, and anything that does not move a metric does not ship.

Baseline and profiling → prioritized bottleneck list → targeted fixes with before/after benchmarks → caching and load testing → observability handoff (1 to 6 weeks typical). You get the numbers, the changes, and the dashboards to keep performance from regressing later.

Tools & methods

CPU / memory profilers
PostgreSQL EXPLAIN
Redis caching
Lighthouse + Web Vitals
k6 / load testing
Distributed tracing
CDN + edge caching
Bundle analysis
p95 / p99 dashboards

Performance is part of how we build everything. The same discipline goes into every web application, SaaS platform, and database we design.

Where the bottleneck usually lives

More often than not, the slowness traces back to the data layer — which is why performance work overlaps heavily with database design and optimization. Missing indexes and N+1 patterns can make a fast application feel broken regardless of how clean the frontend is. When the issue is deeper than tuning, it is usually structural, and the honest fix is architectural rather than another cache layer.

On the frontend, Core Web Vitals improvements feed directly into search visibility and conversion, so the optimization pays for itself twice. And when growth is the real driver, performance work sits alongside cloud infrastructure and DevOps so the system scales on efficiency, not just on a bigger bill.

Performance optimization served from Macon, GA, with clients across Atlanta, New York, San Francisco, and the rest of the US.

Pricing

Fixed-fee per engagement, scoped to system size and goals. Typical ranges:

  • Targeted fix for a specific slow page or endpoint: $5k – $12k
  • Database performance overhaul — indexing, query rewrites, caching: $12k – $30k
  • Frontend Core Web Vitals program with field-data verification: $8k – $22k
  • Full-stack optimization with load testing and capacity plan: $25k – $50k
  • Performance audit with prioritized bottleneck report: $3,500 flat

Every engagement ships with before/after benchmarks. Optional retainer to monitor and tune as traffic grows.

What you get

  • Baseline and result benchmarks — p50, p95, p99 latency, throughput, and query times
  • Prioritized bottleneck report with the impact and effort of each fix
  • Implemented optimizations across the application, database, and frontend
  • Caching strategy with invalidation rules documented
  • Core Web Vitals before/after with real-user field data where available
  • Load-test results and a capacity assessment showing the next ceiling
  • Observability dashboards and alerts so regressions get caught before users do

FAQs

How do you find what is actually slow?

We profile under realistic load rather than guessing. CPU and memory profilers, database query analysis with EXPLAIN plans, distributed traces, and real-user metrics tell us where the time actually goes. Optimizing what feels slow wastes money; we optimize what the data proves is slow.

Most of our slowness is the database — can you fix that?

Usually it is. The common culprits are missing indexes, N+1 query patterns, full table scans, unbounded result sets, and connection-pool exhaustion. We analyze the slow-query log, read the execution plans, add or reshape indexes, rewrite the worst queries, and add caching where it earns its keep. Then we re-benchmark to prove it.

Can you improve our Core Web Vitals and Lighthouse scores?

Yes. We target LCP, INP, and CLS directly — image and font optimization, code splitting and bundle trimming, eliminating render-blocking resources, server-side rendering and edge caching, and removing layout shift. The goal is real-user field data improving, not just a one-time lab score.

How do I know the optimization actually worked?

Every engagement is benchmarked before and after against the same scenarios. You get the numbers — p50, p95, and p99 latency, throughput, query times, and Core Web Vitals — for the baseline and the result. If a change does not move the metric, it does not ship.

Will this hold up when we scale?

That is what load testing is for. We model expected and peak traffic, run it against a staging environment, and find the breaking points before your users do. The deliverable includes the load-test results and a capacity assessment so you know where the next ceiling is and roughly when you will hit it.

Related services

Want the underlying concepts? The glossary covers caching, indexing, and Core Web Vitals, and the blog goes deeper. To scope a performance engagement, contact us directly.

Performance Optimization — Where We Serve

Georgia-based engineering team, working with clients across 14 US metros. Profiling, tuning, and load testing run remotely; in-person reviews available in Atlanta and the Southeast.

Make it fast — and prove it with numbers.

Call William Beltz directly at (770) 652-1282 or book a 20-minute scope call. Founder-led from baseline to benchmark.