Try to have the pause. Search for that. After the pause getting the elbow farther forward before the chop helps. Having the pause means not turning the legs, hips etc. toward the target as early as you do. Getting the pause may help you to keep the disc closer to the body.
Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.
You're arcing around your torso rather than whipping. That's whats making you say it looks like you're strong arming the disc. Your arm should move around your torso more in the shape of an ellipse (tight to the chest, then forward out&away from the body) rather than a circle. The whip motion is going to make your hand movement appear to be faster than it looks in your video with less effort.
Ive been going about my pull all wrong since the start. I took that whole starting the lawnmower idea literally as in i was pulling with a bunch of muscle like i was actually starting a hard to pull starter on a lawnmower lol...
Also i wanna add that i think i need to start rotating on the ball of my foot instead of my heal. I keep getting shin splints after 18 holes..