I DID adjust the sensitivity...
As far as the bug you're having, have you installed any keyboard sip's?
And RAM doesn't always mean faster. This ROM also had a lot of tweaks that used up more RAM but sped up the ROM. ^_^
Nope. I didn't install anything for the keyboard. I simply flashed the ROM, installed my applications (none of them keyboard related) and noticed that when I was writing some SMS's.
Yes, the ROM is quite fast comparing for example to the WM7 Titanium Projects and is indeed more finger sensitive. At least is more fluid and responsive for example in the start menu when you hit the icons with your fingers.