Are these temps normal? RYZEN 7 5800X3D

So I've been messing around with monster hunter wilds beta for a little bit now and I'm having an absolute blast, the only thing that's kinda concerning is my temps seem to be fluctuating pretty hard, they're not hitting TJ max by any means but they usually run in mid to high 60s then will spike to low 80s then back down to 60s and this happens pretty often, is this normal?

I have a corsair 280mm AIO that's admittedly pretty old, about 7 years old at this point, paired with a ryzen 7 5899x3d and rx 7890xt gpu,

Ive heard that Wilds is pretty CPU dependant, is this normal? Or should I be looking into a new cooler