When i first installed elementary os without updating the os itself everything was smooth and working fine. When i rebooted from the updates my mouse starts skipping a lot and the overall performance has been decreased drastically. My pc can handle the OS easily, i just don't know why it is not working as well anymore. I tried removing and reinstalling the updates but they did not change anything. I would also like to add that I cannot change the orientation of my second monitor to a portrait mode which is annoying. When hitting apply it just does nothing.