Service · Cloud, DevOps & Reliability

Performance Optimization for Faster Websites, Apps, and Platforms

We improve website, application, database, and infrastructure performance so users get faster experiences and teams get more reliable systems — with every improvement measured and reported.

Measured before and after, ranked by traffic — not by what is technically interesting.

Core Web VitalsQuery tuningCaching layersLoad budgetsPERFORMANCEone senior team, end to end
The problem

Problems this service solves.

  1. 01Pages or API endpoints are slow and users are dropping off
  2. 02Core Web Vitals scores are hurting SEO and ad quality scores
  3. 03System slows down under load and nobody knows why
  4. 04Database queries have never been reviewed for N+1 or full-table-scan issues
  5. 05Infrastructure is over-provisioned but still slow
What you get

Concrete deliverables, not activities.

  • Performance audit with prioritized fix list
  • Core Web Vitals and Lighthouse improvements
  • Frontend performance fixes (JS bundle, render, layout shift)
  • Database query optimization and indexing
  • Backend performance tuning and profiling
  • Caching strategy (Redis, CDN, edge)
  • Image and asset optimization
  • Infrastructure right-sizing and cost reduction
  • Load testing and capacity planning
  • Monitoring setup and ongoing performance reporting
The stack

What this is built on.

  • Datadog / Grafana / Prometheus
  • New Relic
  • PostgreSQL / Redis
  • Lighthouse / WebPageTest
  • k6 / Artillery

Built for these teams

Ecommerce teams with slow checkout or product pages hurting conversion · Engineering teams with backend performance degrading under load · Businesses failing Core Web Vitals affecting organic rankings · Teams with rising cloud costs from under-optimized infrastructure

Typical engagement

How the weeks run.

WEEK 1

Performance audit, profiling, and bottleneck identification

Real user data and profiles, not a synthetic score — we find where the time actually goes.

WEEK 2

Fix prioritization, test baseline, and optimization plan

Fixes ranked by the traffic they touch, with a baseline recorded so each change can be judged.

WEEKS 3–N

Performance improvements, load testing, and validation

Changed one at a time and measured against that baseline, including under load.

FINAL WEEK

Monitoring setup, alerting, and handover documentation

Alerting on the metrics that matter, so the next regression is caught before a user reports it.

Proof

Work in this area.

EcommerceLong-term client work

Shopify Ecommerce Operations Automation, Inventory, and Mobile Warehouse Apps

A connected Shopify, order management, inventory, warehouse scanning, mobile field update, and shipping handoff system for custom ecommerce operations.

Upwork client feedback
The SQL and query work turned slow pages into quick, fast-loading pages.
Upwork client feedback
Why Zasya for Performance Optimization

What makes us different.

Measure before optimize

No optimization without instrumentation. We establish baselines and measure every change against them.

Fix the biggest thing first

Pareto applies. We rank fixes by traffic and revenue impact, not by what is technically interesting.

Cost as a metric

Faster usually means cheaper. We track cloud spend alongside performance metrics and optimize both.

Performance Optimization — FAQ

Questions we hear every time.

Where do you start?
Instrumentation and a prioritized audit. Most applications have 2–3 root causes that account for 80% of the performance gap.
Can you reduce our cloud bill?
Right-sizing, caching, and eliminating idle resources are where it comes from. The audit reports the figure for your environment rather than a generic one.
Do you fix Core Web Vitals?
Yes. LCP, CLS, and INP improvements are standard parts of a frontend performance engagement — tied to the elements actually failing in real-user data.

Start a conversation

Improve performance and reliability.

Bring the page or the query that is slow. We'll establish what to measure first, then rank fixes by the traffic they actually affect.

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