After being awakened from sleep, Logos 5 become sluggish again as it used to be with Logos 4.
Windows 7, AMD Phenom X4 9650 Quad-Core, 8 gig.
Windows will Logos files from its memory cache when it went to sleep. After using Logos for a few minutes, the files should be cached again, and your good performance should return.
I notice this as well, I usually just close L5 and launch it again.