Google Antigravity Performance Optimization: Speed Up Your Development & Code

Performance matters—both for your IDE experience and the code you ship. This guide covers optimizing Google Antigravity itself and using Gemini 3 to write faster code.

IDE Performance

Optimize Antigravity Settings

// settings.json optimizations
{
  // Reduce file watching
  "files.watcherExclude": {
    "**/node_modules/**": true,
    "**/dist/**": true,
    "**/.git/**": true,
    "**/coverage/**": true
  },
  
  // Limit search scope
  "search.exclude": {
    "**/node_modules": true,
    "**/dist": true,
    "**/*.min.js": true
  },
  
  // Optimize editor
  "editor.minimap.enabled": false,
  "editor.renderWhitespace": "selection",
  "editor.cursorBlinking": "solid",
  
  // Optimize Gemini
  "antigravity.gemini.debounceMs": 300,
  "antigravity.gemini.maxContextTokens": 50000
}

Extension Performance

Check slow extensions:

1. Open Command Palette
2. Run "Developer: Show Running Extensions"
3. Disable heavy extensions not in use

Memory Management

{
  // Limit memory usage
  "antigravity.maxMemory": 4096,
  
  // Close unused tabs
  "workbench.editor.limit.enabled": true,
  "workbench.editor.limit.value": 10
}

Code Performance Analysis

Request Performance Review

You: "Analyze this code for performance issues"

// Before: N+1 query problem
async function getOrdersWithProducts(userId: string) {
  const orders = await db.orders.findMany({ userId });
  
  for (const order of orders) {
    order.products = await db.products.findMany({
      where: { orderId: order.id }
    });
  }
  
  return orders;
}

Gemini 3 identifies:

## Performance Issues Found

1. **N+1 Query Problem** (Critical)
   - 1 query for orders + N queries for products
   - 100 orders = 101 database queries
   
2. **Solution: Use includes/joins**

\`\`\`typescript
async function getOrdersWithProducts(userId: string) {
  return db.orders.findMany({
    where: { userId },
    include: { products: true }
  });
}
\`\`\`

3. **Result: 1 query total**