Am I just bad now?

I used to consistently get in Div 20 in ufc 3 and 4. I was good. The best? Nah I lost sometimes but I won most. I can not get good at 5 and idk why. I’ve never been a “cheese player” and won by knees and elbows or ground spam…I’ve always just used strategies mid fight. I train and fight in real life so I kinda just use real strategies I guess?? But in ufc 5 this isn’t working for me. I barely break DIV 16 and I lose a lot. Anyone else on same boat as me??