PC Ryu cr.hk issue

Ok so I have SSF4:AE for PC and when I go and do “cr.lk > cr.lp > cr.lp > sweep” it doesn’t come out. I know my inputs are right cause I get it 99% of the time when I do it on PS3. And also this only happened recently when I changed my monitor from a 20 inch widescreen to a 27 inch. Not sure if that was the main cause of it but I was just wondering if anyone else is having this problem? Basically everytime I for go for the sweep the cpu blocks it when I know my timing is correct cause I’ve practiced it over and over and it worked before. Like cr.mp>cr.mp>sweep works fine but I just can’t get the sweep after cr.lp or st.lp. I’ve even switched joysticks to see if that was the case but it wasn’t. Please help.

There is 1 frame of extra input delay on ps3 compared to xbox, but i dont know how much delay the pc version has, and the delay on your new screen may not be the same as the old one. If your screen has a gaming mode use that.