Performance Lag after March 6 update

This might sound stupid but......I have been having problems with lag/rubberbanding for months now and did everything including calling EA support and being escalated all the way to DICE technical specialists where they couldn't even figure out why I was lagging and just had pisspoor performance...so after tweeking and reinstalling windows 7 to 8.1 all all that jazz it turns out my video card was all gunk'd up with grime and cat hair and dirt /dust so...al I did was take some qtips and rubbing alcohol and paper tissues and cleaned it out heatsink and all reapplied some thermal paste and voila! no more lag no more rubberbanding or crashes or flickering.Im telling you all before anything try this if you haven't already.