Characters (static meshes) slow down the game?

Hmm I think it could be that, as I just wanted the animation I did import the animation object and it appears as a static mesh :confused: I used MakeHuman to create the character (with a mod to make a lowpoly mesh) then mixamo for animations and when imported in UE4 it gave me : mesh, skeleton and animations object. I put in my scene the animations objects.

Is that the cause of the low framerate ?