probably not this one
Another distinction of a bench top jointer is a builtin motor. This one is a 3/4HP unit, not really enough for a 6" jointer in my opinion. My 6" have 1 HP motor and when taking a full width pass they will slow down a bit, but still remain workable. It depends on the depth of cut you are making. Me, I like to just get the job done and may first take an 1/8" cut to waste away the twist, then raise the infeed to 1/16" or 1/32" as I get closer to straight and flat.
Keep looking, is my advice.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)