CEMU 1.19.0 receives a HUGE shader stutter improvement, albeit experimental. Postposterous tested it for about 30 minutes with almost no noticeable stutter. You may notice some missing textures temporarily, but at least the gameplay doesn't miss a beat!
Public release date: 05/15/2020
CEMU 1.19.0 Changelog
http://cemu.info/changelog/cemu_1_19_0.txt
https://www.youtube.com/watch?v=tVjhP5VYf1Q