DynamicFPS++ seems to improve on the ultrahand vertical sense fix over DynamicFPS1.5.1, though it's still not perfect (vertical sense is still a little higher than horizontal sense when on ultrahand and when compared with normal camera).
Also, I don't have any clue why, but my TotK just run significantly better with DynamicFPS++ instead of using 60FPS + dFPS1.5.1, as it was when I compared FPS++ with dFPS1.4.1. It doesn't make sense, they should behave equally. And this behavior occur with Yuzu and Ryujinx, no matter what version/build, with or without clearing shaders etc.
Don't know why they would run any different, that may just be happenstance and run-to-run variance in the emulator.