Whenever playing multiplayer on Starcraft I always start out fine with low ping. All of the sudden at times my ping spikes up for some reason staying like that the whole game. This makes the game unbearable and has caused me to leave ranked matches due to me not being able to even macro my units.
that suggests a problem with your network. i know for a fact that power saving solutions affects starcraft 2, you could see if you have any present.
I can play any other game and be fine, but Starcraft is the only game i get high ping on.
starcraft 2 is very demanding, along with dosbox. i also only had trouble with those 2 when i used power saving solutions.