My biggest thing is marking, so I put the marking an spoil timing down to make it nearly impossible to win a contest, meaning the cpu always has the ball, meaning it’s harder for me to score. You just need to adjust the sliders to what you’re good at to make it harder. As mentioned, it’s going to get to the point that no matter what sliders, you’ll just be too good for the CPU.
One thing I did also is make sure I’m not playing anyone outside the top 6, as the CPU become way too easy