Having performance issues with Patch 3.0? Here's what to do.

[Alex06]

So all those with performance issues (FPS drops, CPU/RAM usage, lag spikes, crashes, etc.), check this out. I think I found out what's causing it and how to fix it:
https://www.reddit.com/r/starcraft/comments/3nwrxz/fyi_32bitsc2exe_mode_is_far_faster_than_64bitsc2/
http://us.battle.net/sc2/en/forum/topic/19136205030
http://us.battle.net/sc2/en/forum/topic/19137005025

[KaiserStratosTygo]

Tried that, game still won't launch :/

[Visions of Khas]

Currently having problems connecting to Battle.net with LotV. Sad face. I wanted to try some Protoss strategies out.

EDIT Fixed it. Aaand losing every game. Battle.net can go back down now.

[TheEconomist]

Oh wow, I went several games with no problems, then all of a sudden it acts up as two Oracles go for my SCVs. In one frame, I had 20-something SCVs, in the next frame, nothing.

Damnit Blizzard.