Blender 2.8 lags HORRIBLY whenever I try to move an object

I’m working on this model rn and everything’s been fine. Until Blender just started lagging like crazy! Whenever I try to move an object or an armature, Blender lags so much. Idk if it’s a problem with my MacBook or if I just need to change some settings. Can someone please help me and tell me a solution. That would be much appreciated. Thanks!

Hi, that is too less information for help. Upload a screenshot or the blend-file.

Ok, Sorry for the lack of information! Hope this helps
Fuego Burns.blend (1.6 MB)

You have set subdivision far to high, >4Million faces, too much for a normal pc, delete subdivision or set it to 1 and switch on smooth shading later. First the mouth must be recreated if you want it smooth. For that you have to learn how to create such topology first. Try some tutorials first like:
Later you can go with some like this:

That fixed it! Thank you for your help! I appreciate it!