I haven't run this in a long time. Probably since early December. I've been extremely busy with all that life throws out, and haven't had a chance to devote any adequate amount of time to any of the three devices I maintain. We've stopped nightlies, and the team is hard at work preparing the platform for release.
If you're talking about touch latency, I'm unaware of any way to mitigate that lag. That's due to whatever panel HP chose to use in the device, and can't be remedied by software.
Whenever I use the touchpad, I use it overclocked. I run at 1.7ghz without issue. However, judging by your question I don't think you want to overclock. In that case, I have no suggestion for a remedy.
TL;DR: I don't have time right now to maintain, and without OC I don't know of a way to mitigate lag.