could be the fan isn't going into high speed, you might need your rad flushed, maybe as simple as the air deflector on the bottom got knocked off, it could be a timing issue just to name a few things.
Bottom air deflector helped me. I soon after did a radiator and coolant change because I’m OCD like that!! I never go over 210* even when I “put it thru the paces” as they say ;-)