I'll provide some quick steps on how I made mine snappy.
1. [Install Preware with WebOS Quick Install][1]
2. In Preware on the Touchpad,
a. install [UberKernel][2] (Kernel > Stable)
b. install [Govnah][3] (Application > System Utilities) and choose
the OnDemandTcl 1512 profile. This overclocks the device to
1.5 GHz (up from 1.2 GHz) and underclocks it to 192 MHz when
idle (down from 500 Mhz).
c. install the following patches
i. Faster Card Animation HYPER Version (Patch > Mojo)
ii. Increase Touch Sensitivity And Smoothness 10 (Patch > Misc)
iii. Muffle System Logging (Patch > System; primarily what
you're looking for if you don't want to use the custom kernel)
iv. Remove Dropped Packet Logging (Patch > Misc)
v. Unthrottle Download Manager (Patch > Misc)
I've only had the device for a couple of days now but haven't noticed any adverse effects. What prompted me to try it in the first place was [this ZDNet article][1], in which the author adds, "...my Skype video call to Jason Perlow was an hour long with video, and battery was down to 91 percent when ended."
It works totally fine with 3.0.2 (the only OTA update as far as I know), but I can't give a comparison, sorry. I updated the same day I got the device so I'm not sure how 3.0 was.