Do not worry much about Check speed numbers.
Actually, check speed makes real activity simulation by doing multithread random reads with random size and positions for files listed in cache.
So the overall numbers are very dependent on many factors:
1. Number of cache devices you have in eBoostr
2. Average file size for cached files
3. Total cached files number
4. Disk activity at check time
5. Number of file marked for deletion in cache.
6. Type of OS.
7. And so on.
So check speed numbers are mostly for your computer speed up estimate rather than for PC to PC comparing.