I recently installed after 2 years pause Watch Dogs again. I did with the newest AMD Crimson drivers (16.30.2311). I noticed that the game may run a bit slower than back in the 2014 (but let's say for the sake of simplicity of the topic that that was cause by more clutter in [OS Windows 7].
The main problem is that there are graphical glitches in the game. So far I have come across one (but more may come). When in slow-motion (focus mode) there are artifacts all across the screen. Let's demonstrate:
I have also a secondary problem that I cannot get Steam to launch it's overlay in Watch_Dogs (may be related, therefore I am stating this fact, but let's not focus on this for now).
Any and all help is much appreciated. I am including DxDiag just in case.