[2022] Fps drops when you press switch mode button, gets gradually worse the more you press it which makes editing with gun/pickaxe out after like 10 mins in creative EXTREMELY hard.

Thanks, u/alifortnitemobile! By any chance did you submit an in-game bug report?

Hey u/alifortnitemobile You can find the 'How To' in this support article https://www.epicgames.com/help/en-US/fortnite-c5719335176219/technical-support-c5719372265755/submitting-a-bug-report-in-fortnite-a5720377777819

Next time you experience this could you please submit an ingame bug report and then dm me to let me know? It will help us investigate what is going on.