Tablecloth is interacting with characters' collision shapes. If you do not have physics based cloth on a character, then disable collision shapes altogether.
If some cloth and/or hair require collision shapes enabled, then disable those shapes which should not interact with cloth (usually for hands, feet..etc).
Otherwise transform your character away from a table, bake table cloth animation (enable Bake Animation under Soft Cloth in Project settings and run animation in ByFrame mode) and disable physics for tablecloth and a table itself.
Then disable Bake Animation, transform your character back and continue with the project.