Pi 4 screen tearing

I’ve noticed that on my Pi 4 with the latest version of retroarch/lakka available for it (I’m curious why the latest update isn’t in line with the latest released feature set?) that I get SEVERE screen tearing on my 2560x1080 60hz LG monitor. If I quickly flick from one end of the screen in the main menu to the other I can actually see what looks like chunky combing artifacts where strips of about 1/10th of the screen vertically is nearly a second behind the rest of it.