У вашего броузера проблема в совместимости с HTML5
Just testing XFX R7 260X on Watch Dogs 2 with mixed settings on 1080p. The card manages to hold up to 30FPS atleast really well. 1080p and High settings with 30FPS cap works really well and you will get same visuals as PS4 just with better performence.
[Drivers used: Crimson ReLive Edition 17.4.3 ]
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PC Specs:
I5 3570K Quad-Core @ 4.2GHz
Corsair H100i
ASUS P8Z77-V
Corsair Vengeance 8GB 1600 MHz
Radeon R7 260X XFX 2GB Edition @ 1200 Mhz / 6400 Mhz
TOSHIBA 7200RPM 2TB SATA III
EVGA Supernova 720 G2 750W
Corsair 330R Titanium Case
OS: Windows 10 Pro x64