I use: Police Radio, NewsHeliPursuit, Traffic Policer, Arrest Manager, Wilderness Callouts, Assorted Callouts, Law Callouts, DashcamV, KeepCalm, PedSearch, VehicleSearch.
I removed (tested): NewsHeliPursuit, KeepCalm, PedSearch, VehicleSearch.
The plugins i listed are not the problem. Only when i remove the callouts it works without any framedrops.
Edit: I get this framedrop in pursuits or after arresting a person.