React Context API Optimization

I need help optimizing my React Context implementation.

**Current Context Setup:**
```jsx
[paste your current context code]
```

**Consumer Components:**
[Describe components using this context]

**Performance Issues:**
- Observed re-renders: [describe]
- Profiler results: [if available]
- User-facing lag: [describe]

**State Update Frequency:**
[How often does context state change]

**Requirements:**
- State that changes frequently: [list it]
- State that rarely changes: [list it]
- Actions/methods needed: [list them]

Please provide:
1. Optimized context structure
2. Context splitting strategy
3. Memoization implementation
4. Custom hook for consumers
5. Provider component optimization
6. Before/after render comparison
7. Alternative solutions if applicable