API Performance Boost · Faster Sessions, No More Timeouts

We identified and fixed the root cause of "NetworkError when attempting to fetch resource" errors that some users experienced after completing practice sessions.

The Problem

The analysis API route was performing too many sequential operations · authentication, audio transcription, AI analysis, database saves, streak updates, achievement checks, and XP awards · all one after another. On Vercel's serverless platform, this frequently exceeded the default 10-second timeout.

The Fix

⏱️ Extended Timeouts

All AI routes now have explicit timeout configurations:

• Practice analysis: 60 seconds
• AI Voice Coach: 30 seconds
• Interview reports: 60 seconds
• IELTS/TOEFL: 60 seconds

⚡ Parallel Database Operations

Session saves, streak updates, and achievement checks now run in parallel instead of sequentially · cutting 2-3 seconds from every request.

🛡️ Graceful Fallbacks

If the AI analysis times out, you now get a basic score with helpful feedback instead of an error screen. No more lost sessions.

🔄 Request Timeouts

Individual API calls to Groq (transcription and analysis) now have their own timeout limits, preventing any single call from hanging the entire request.

Result

Session analysis is now faster and more reliable. The "NetworkError" issue is resolved across all session types.