FPS Drop when tracking quests

Hello, I have got a huge Issue with my fps when I begin to track a quest. My fps almost halves just by tracking anything.
For example: standing in a certain area full with mobs and me not tracking any quest = 250-280 fps
standing in the same area tracking a quest 160-170.
It becomes a problem when working with addons that significantly impact performance f.e. Elvui. My fps will drop to 60 sometimes.
Is this some issue since the update? Are certain files corrupted?
The console command for the hidden quest thing didnt do anything for me btw.
Thanks in advance!

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