It's interesting, but I've recently started encountering this same issue. I didn't have it before, but it's a problem now. Not entirely sure what caused this to happen, is there some windows system tool I can use to see what changes I've made to my system (installs / programs / services) in the past 2 weeks?
My specs are the following:
Nvidia geforce 670
Intel 5820K
32gb ddr4
Win 7 64-bit
SSD + HDD
I've tried the game on SSD, but it doesn't seem to help. My current performance is similar/identical to that of the second video, and the game used to work fine 1-2 weeks ago.
You can certainly check Add/Remove programs to see the list of installed programs as well as checking Windows updates I believe.
You can also check what runs on startup:
Click Start, run
Type msconfig
You should then be able to see your startup entries, and what is/is not enabled and make desired changes.
You may get a notification that MSConfig was run at next boot-up, but you can just ignore that.
