I used “Use Complex as Simple” option for all the models in the level. From what I’ve noticed game tick wise, it’s not really demanding, maybe if the objects were extremely high poly then sure, but in this case there doesn’t seem to be any drop in performance. As for the jittering I found that it disappeared after I rescaled my character in blender to be his original size, setting his scale back to 1.0 in ue4 and adjusted his capsule height and radius. The jittering comes back though if the capsule height is too low to the point where the character’s feet moves into the surface, even slightly, so for now I have to deal with a slight bit of hovering.