I agree with Dennis (THW.) There are other readers that are faster and less bloated than Adobe. I also use Foxit. Other recommended readers are Nitro PDF, Sumatra, PDF-Xchange Viewer, Cool PDF Reader, to name a few.
My Computer
At a glance
Win 7 Pro 64-bitIntel i5 2.4 Ghz8GB DDR3Intel HD 3000