The downscaled menu is on purpose, it’s actually the background that isn’t properly scaled here. probably because of some game patch that changed this particular shader, so that vorpX can’t detect it as menu shader anymore. Should work again with an updated profile in the next vorpX version.
BTW: For using menus I’d generally suggest switching to EdgePeek mode (mouse wheel click / right (or left, don’t recall currently) thumb stick click). That is more comfortable in general and incidentally also will get you rid of this glitch without waiting for the updated profile.