Is it too late to learn how to play SF4 now?

I don’t really have many lag issues to be honest. For some reason I had to step down my graphics settings to make online not lag though.
I’m still not sure how that effected the performance, but maybe you should try that aswell.

Play whatever you want.
SF 4 and 5 are totally different games.

It might be an unpopular opinion but in my circle of friends no one is really looking forward to 5 anyway.
All of us pre-ordered but it’s already sounding like we might just stick it out with 4 so.
There will be people around.
People are still playing the wicked old guilty gear games on PC if you can believe it.