Huge FPS Drop because 2d animations

Hi everyone, I'm making a 2d TD Game and I have a bunch of enemies with 2d sprites animation, and everything seems to work fine on mobile (stable 60 fps), but inside the editor, there is a HUGE fps drop, when I went to the profiler, I have found this thing called "Prelateupdate.DirectorUpdateAnimationEnd" that is taking the whole CPU power, the wired thing these performance problem does not exist in the build (on mobile), I hope if someone has any idea on how to fix this because it is nearly impossible to test the game and debug things with this fps.

my PC specs : +cpu: core i7-4790k +gpu: Nvidia GTX 1060 (6G) +Ram : 8GB Unity version: 2019.4.39f1

[1]: /storage/temp/196813-profiler.png