So, you're running an admittedly sub-par machine that requires you to run the game in compatibility mode, and you're blaming the game?
I hope you're not serious, mate.
Not sub par, well above the min specs, and I had it working pretty swiftly too. The 5s-freeze-every-5s was a known issue on XP machines (a bug, i.e. an unwanted glitch in the software that shouldn't have been there), and the workaround was to run the .exe file in Win 98 compatbility mode. Neither of the patches so far have addressed this bug, and the latest one got rid of the workaround.
I wasn't blaming the game, just annoyed that Steam went ahead and downloaded/installed the update after I had explicitly asked it not too, and also ticked off that the patch messed up the workaround.
Not entirely sure why you had to have a dig at me on that basis, 'mate'. Nothing I have done or said should in any way have any impact on your enjoyment of the game if you have it working well on your rig.