Build Fast.
Scale Harder.
We engineer high-performance MVPs and optimize existing architectures. Stop losing users to lag—launch with LatentFix.
Our Arsenal
Built with the
Fastest Tools on Earth.
We don't experiment with your startup. We use battle-tested, high-concurrency technologies to ensure your product is stable from Day 1.
API & BACKEND
Express & REST Optimization
We eliminate event-loop lag, refactor slow middleware, and optimize SQL query execution plans to ensure your backend never stays in the way of growth. 🚀
FRONTEND & MOBILE
React & Native Vitals
Specialized in React Native bridge optimization and React rendering cycles. We solve 'jank' and slow interactions to provide a buttery-smooth native experience. 📲
MEASUREMENT
Analytics & Tracking
Data-driven performance. We implement precision tracking and monitoring (Sentry, PostHog, or custom) to catch silent bottlenecks before your users do. 📉
Proven Track Record
Selected engineering cases across logistics, fintech, and retail.
Real-time Logistics Engine
Optimized a high-traffic logistics network, reducing system-wide latency by 30% through backend re-architecture.
Fintech Growth Dashboard
Built a high-concurrency dashboard from scratch, designed to handle 50k+ concurrent users with sub-100ms response times.
Log-Watcher Infrastructure
Developed a distributed logging and monitoring system for real-time observability in microservices.
E-commerce Accelerator
Improved Core Web Vitals (LCP/FID) by 50% for a global e-commerce platform, leading to a 12% increase in conversion.
Engineered for Results
"The team at LatentFix didn't just build our app; they built it for scale. Our latency dropped significantly before we even hit public beta."
"Expertise in backend optimization that is hard to find. They saved us thousands in cloud infrastructure costs within the first month."
From Bottleneck to Benchmark in 3 Weeks.
Our proven sprint-based approach to eliminating lag and scaling infrastructure.
The Deep Audit
We hook into your APM tools or logs to identify the exact SQL queries or React components killing your speed.
Surgical Optimization
We don't just give advice; we push PRs. We refactor the critical path, implement caching, and tune your DB.
Scaling Guardrails
We set up automated performance tests so that your team can keep shipping fast without regressing.
Request a Performance Audit
Tell us about your bottlenecks. We'll reach out within 24 hours to schedule a deep dive.