I was hoping to speed up the Haptic Touch setting, but when searching within settings, the results on the left show that they should be there, but the right window pane doesn’t show anything to reflect the search results on the iPad Pro 11...
Might be a bug, might just be how it’s supposed to be. I’m pretty sure the speed of Haptic Touch is set to the fastest setting by default, so even though you can’t access the settings for it I’m pretty sure it’s as fast as it can be.