* Improve prefetching
* Cache user groups for permission check
* Use a GET request to execute search
- Prevent forced prefetch
- Reduce execution time significantly
* Fix group caching
* Improve StockItemSerializer
- Select related for pricing_data rather than prefetch
* Add benchmarking for search endpoint
* Adjust prefetch
* Ensure no errors returned
* Fix prefetch
* Fix more prefetch issues
* Remove debug print
* Fix for performance testing
* Data is already returned as dict
* Test fix
* Extract model types better