Agree, need the far right pinch roller on the right edge of the vinyl. I have a 30" Graphtec that only has 2 pinch rollers and it works fine that way. You don't need to use all of those pinch rollers. Get down eye level with the machine and watch it. Run the machine slow. I never run my cutter fast.
With the force at only 65, it makes me think that you have too much blade exposed out of the blade holder. It should be less blade, more force. That blade should be so far in the blade holder that you think it would not cut at all. You should just barely even see the tip of it. This works for any vinyl. Blade depth is the first thing that has to be done. Too much blade will cause drag. Check your TEST cuts from the machine.
To start with, you should set your blade depth correctly, by taking the blade holder out of the machine, and firmly cut across a piece of scrap vinyl, you will be cutting. You should only be cutting the vinyl and barely a mark on wax paper backing, Adjust blade to get there, Then put the blade holder back in machine, and use the force of the machine to get there, same results, only cutting the vinyl and barely a mark in wax paper backing. You should barely see and feel the blade tip out of the blade holder. Regular sign vinyl is only 2-3 mil thick. You only cut with the very tip of the blade. When you think the blade is so far in the blade holder, that you think it would not even cut, that is probably correct. The blade holder should be almost touching the vinyl with hardly any gap between the vinyl and the blade holder. With cutter off, push the blade holder down and get down eye level with it. If the blade is set correctly, even pushing down the blade holder, you cannot cut thru the wax paper backing, because the blade would not be long enough. It's not about just not cutting thru the wax paper backing, but also having the least amount of blade possible to stop drag.