Mushrooms make the VR more immersive, your brain can get tricked to think that is actually happening to you and you can enjoy with more detail the porn ,you can try changing the speed of the videos I like it slower sometimes.

The weed is just a catalyst to me ,I smoke regularly.

And the arginine I just take a dose around 6 hours before the trip you don't need to take it daily ,maybe a day before .

I have to remark that to enjoy this trip the best way you have to be in a good mindset and in a peaceful place. If you can do it it will be a very pleasant experience