# Performance Optimization Fixes

## Quick Implementation Guide

Apply these fixes in order:

1. **Database Indexes** (Immediate impact, no code changes)
2. **Settings Configuration** (Redis cache + connection pooling)
3. **Middleware Optimization** (Remove blocking operations)
4. **Model Optimizations** (Add select_related/prefetch_related)
5. **Celery Setup** (Move background tasks to queue)

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## 1. DATABASE INDEXES (Run these migrations first)

Create file: `loans/migrations/0XXX_add_performance_indexes.py`
Create file: `savings/migrations/0XXX_add_performance_indexes.py`
Create file: `customers/migrations/0XXX_add_performance_indexes.py`

See separate migration files below.

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## 2. SETTINGS.PY OPTIMIZATIONS

See `questbanker_api/settings_optimized.py`

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## 3. MIDDLEWARE OPTIMIZATIONS

See `questbanker_api/middleware_optimized.py`

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## 4. REQUIREMENTS.TXT ADDITIONS

Add these packages:
```
redis==5.0.1
django-redis==5.4.0
celery==5.3.4
```

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## 5. CELERY SETUP

See `questbanker_api/celery.py` and `questbanker_api/tasks.py`

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## 6. VIEW OPTIMIZATIONS

Apply query optimizations to views - see optimized view files.

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## Expected Performance Improvements

- **50-70% reduction** in database queries (N+1 elimination)
- **40-60% faster** page loads (caching + indexes)
- **80-90% reduction** in request blocking (async tasks)
- **30-50% reduction** in database load (connection pooling)