Speed & Performance
Speed is revenue · why AI-generated apps ship slow, how performance becomes a security problem, and what actually makes them fast.
- Performance as a Security Risk: How Slow Code Creates Vulnerabilities · Slow code is exploitable code: blocking I/O, N+1 query patterns, missing caching, unbounded queries, and absent timeouts let attackers take down an app with minimal traffic (application-level DoS). Fix them by going fully async, batching queries with joins, adding caches and pagination limits, and capping request body sizes.
- Why Your AI-Built App Is Slow (And How to Fix It) · AI-built apps are typically 500 to 2000ms slower than they need to be, with 30-40% larger JavaScript bundles and redundant network requests. The top fixes: remove duplicate auth calls, drop full-page loading gates, code-split routes, replace framer-motion with CSS, cache queries, and preload the hero image. SimplyScan's Speed category finds all 10 issues automatically.
- Speed = Revenue: What the Data Says About Faster Apps · Speed measurably drives revenue: Amazon loses 1% of sales per 100ms of delay, Walmart gains 2% conversions per second saved, Pinterest's 40% faster pages lifted signups 15%, and 53% of mobile visitors abandon sites slower than 3 seconds. Every 100 milliseconds of improvement produces a measurable lift in conversions, engagement, and revenue.
- Why Cursor, Lovable, and Bolt Don't Optimize Your App's Speed (And What Does) · Cursor, Lovable, Bolt, Replit, and Windsurf optimize development speed, not runtime speed: none audit their generated code for redundant requests, missing code splitting, or heavy bundles. The result is apps that ship in a day but lose 53% of mobile visitors past 3 seconds. SimplyScan audits the deployed app and flags exactly what your AI tool left behind.
- Why Your Vibe-Coded App Needs Uptime Monitoring · AI-built apps fail quietly: cold-starting serverless functions, expired third-party keys, sleeping free-tier databases, and silently broken routes. Uptime monitoring pings your URL every few minutes and alerts you before customers do, while a public status page turns outages into credible communication. SimplyScan's Uptime tab sets both up in about a minute, free.
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