I am running a Plugable USB 3.0 to DVI Video Graphics Adapter with my early 2014 13 inch mac air and it is running super slow. It seems like the system is having a hard time keeping up drawing where my mouse is and it just sort of teleports around on the screen when I move it.
It’s a 27 inch running 1080x1920 (portrait). Is this something that is considered normal when running on specs like this or is there something I can do to help it like maybe doing something like what is described here?: