I started out my first VR experience with the PSVR. In the beginning I would sometimes experience motion sickness, but I soon adapted.
Now, 2 years later, no matter how low fps or any other anomaly, I dont get the motion sicky. Every once in a while and few and far between Ill get a slight “Ugh Oh that didnt feel right” but then right back into enjoyment.
Some folks may just not have the ability to adapt to the VR experience.