← Back to Home

Day 52 — Server Optimizations, Load-Time Wins, and Performance Stabilization

Cozy GameFortnite / UEFN

Context

Today was all about performance. After observing severe hitching and lag during a multiplayer test, it was clear that optimization had to take priority over new features.

Day 52 previewDay 52 preview

Island Generation Performance

I focused first on island generation, which was a major contributor to the issues:

  • Reduced island generation time by ~50%
  • Current load time is ~13 seconds, down from ~20+

I may intentionally slow this back down to ~20 seconds to avoid disrupting active multiplayer sessions when new players join. That still feels like an acceptable load time and gives me flexibility depending on how multiplayer behaves.

Code Path Optimizations

Beyond generation, I identified several very expensive patterns in the code that were contributing to runtime hitching. Refactoring these resulted in immediate, noticeable gains.

The overall result is a much smoother experience:

  • Fewer hitches
  • More predictable frame pacing
  • Better multiplayer stability

Reality Check

Worst case, if multiplayer still proves too risky at launch, this can ship as a single-player-first experience that runs extremely smoothly. That wasn’t something I could confidently say yesterday.

Summary

What I accomplished:

  • Optimized island generation to cut load time in half.
  • Identified and removed several expensive code patterns.
  • Dramatically improved runtime smoothness.

What I learned:

  • Performance issues compound quickly in multiplayer contexts.
  • Optimization buys flexibility, not just speed.
  • A smooth single-player experience is a strong fallback.