Build settings configuration in Unity - Performance & Optimization

Performance: Build settings configuration

MEDIUM IMPACT

Build settings configuration affects the final app size, load time, and runtime performance by controlling which assets and code are included and how they are optimized.

Configuring build settings to optimize app size and load performance

Unity

PlayerSettings.stripEngineCode = true;
BuildPipeline.BuildPlayer(scenes, buildPath, BuildTarget.StandaloneWindows64, BuildOptions.None);

Stripping unused engine code reduces build size and speeds up loading.

📈 Performance Gainsaves 30-70MB in build size, reduces load time by 2-4 seconds

Configuring build settings to optimize app size and load performance

Unity

PlayerSettings.stripEngineCode = false;
BuildPipeline.BuildPlayer(scenes, buildPath, BuildTarget.StandaloneWindows64, BuildOptions.None);

Including unused engine code and assets increases build size and slows load time.

📉 Performance Costadds 50-100MB to build size, increases initial load time by several seconds

Performance Comparison

Pattern	Build Size Impact	Load Time Impact	Runtime Memory	Verdict
No code stripping, all assets included	High (large build)	Slow (long load)	High	[X] Bad
Code stripping enabled, unused assets excluded	Low (smaller build)	Fast (short load)	Lower	[OK] Good

Rendering Pipeline

Build settings determine what assets and code are included in the final app. This affects how quickly the app loads and how much memory it uses during runtime.

→Asset Bundling

→Code Stripping

→Compression

→Loading

⚠️ BottleneckAsset Bundling and Code Stripping stages

Optimization Tips

1Always enable code stripping to remove unused engine code.

2Exclude unused scenes and assets from the build to reduce size.

3Use asset compression to speed up loading times.

Performance Quiz - 3 Questions

What is the main benefit of enabling code stripping in Unity build settings?

A Reduces build size and speeds up app loading

B Increases graphics quality

C Adds debugging information

D Improves network performance

DevTools: Unity Profiler and Build Report

How to check: Open the Build Report after building the app to see size breakdown. Use Unity Profiler to measure load times and memory usage during runtime.

What to look for: Look for large asset sizes, unused assets included, and long load times indicating poor build settings.