Issues with the performance of Filament, particularly on Windows, often involve Microsoft Defender.
Security software, such as realtime file scanners or antivirus tools, can slow down your development environment by scanning files every time they’re accessed. This can affect PHP execution, view rendering, and performance in general.
If you’re noticing slowness, consider excluding your local project folder from realtime scanning.
Tools like Microsoft Defender, or similar antivirus solutions, can be configured to skip specific directories. Check your antivirus or security software documentation for instructions on how to exclude specific folders from realtime scanning.