I did try running .exe under env1/env2 on ssd with antivirus disabled. Here's the result:
env1: 2.2 secs;
env2: 9~10 secs;
The launch speed is way faster than hdd. Tried a couple times and the result is firmed.
I know it makes zero sense, but here the launch time increases with the number of dlls increases in the exe's directory.
Thanks,
Alex