Yeah, that's too be expected since getting 2 keypresses from one keypress would be bannable

My thoughts are that you'd have to do something like this

klc1 (on main) -> shift+l -> down, shift+o ->strafe
klc2 (char1) -> s -> down
klc3 (char2) -> s -> down, a -> strafe
klc4 (char3) -> s -> down, d -> strafe

Then to do what you want you would press down shift+l+o at the same time and those two keys should pass at the same time, the same as if you were to hold wa down together. This should work from my understanding