New to Audition [With centered auto scrolling, the view is extremely choppy. Normal is fine.]

Hi Guys! I just downloaded Audition. I'm running:

AMD Phenom 2 X4 965 Processor 3.4ghz

8 gb RAM

Windows 7 Home 64 bit

500 GB HD

I am only using Audition currently to edit audio files, that are about 40-60 minutes long.

When I switch to centered auto scrolling the view is extremely choppy, but when i just edit audio normally it functions pretty ok. Are there settings that I can use to have this run more optimized???

Thanks in advance!