I reviewed your Speccy report and it does look like your processor is running at higher than stock speeds. I believe it's not actually over-clocked, but the processor is utilizing the built-in Turbo Boost option, which will raise the cores speeds based on load. This is a feature of the CPU model you purchased, marked with the (k) for Intel or the "AMD Black Edition" for AMD. Any CPU's of these series are able to run faster than intended, automatically, without you doing or changing anything. This can often lead to freezing or crashing in applications that are not expecting this to occur.
Since this situation simulates over-clocking, I'd still like to try to disable this, and for that I have included some instructions for a work around below:
Go into Power options (Control panel -> Hardware and Sound -> Power Options) and click “Change plan settings” near your plan.
Then click on “Change advanced power settings.”
Scroll down to “Processor power management” and expand it.
Expand “Maximum processor state” and modify the setting to 99%. Be sure to also set the minimum processor state to something below the maximum. I recommend 5%.
Then simply click “Apply” and “OK.”
After this has been done try launching the game again. When you do, the turbo boost feature should refrain from kicking in and that may resolve the issue you've been experiencing.