BobVB
macrumors 6502a
3D touch is in fact slightly faster for me. Jittery still yes, but it's faster than last beta. Try again after a restart and waiting for couple of hours.
However, I now positively experience a slight lag while closing apps down. Get some lose some. 😀
Curious are you testing with your phone plugged in or free standing. My processors are totally to over 100% almost continuously over an hour after the update, but as soon as I unplug it they go down to less than 20%.
When my phone is plugged in to power it is far ‘jerkier’ than it is when its not.