I just started playing the game and something I noticed from the off was lag spikes causing my screen to momentarily freeze. Between these lag spikes every 5 seconds (not a emphasised) the game runs brilliantly. I'm wondering if these could be caused by internet issues, if slower internet causes screen freezes or if it's likely hat the fault is with my display (which runs fine on everything else).

Visuals run from a ATI radeon HD 5850 so it could only be a huge issue with the card, drivers or a compatibility issue if it is my end.