Once ITM, Having Problems
 

hello, i have about a 45% ITM which I am very pleased with, however my roi is not as high as I'd like b/c i am not winning or even taking 2nd as much as I'd like. I'm a very tight aggressive player, good at slowly building my stack through the lower levels. However, once it gets down to 3, i think i am becoming too passive. often folding SBs b/c the blinds are so high. I know this is a general question. But what is the overall strategy when the blinds are close to 1/4 your stack and you're already ITM? Oh btw i play mostly 11s and 22s

thanks