I can’t quote any enormous studies but I can give you my own experience.

I use it once every month or so, and while I’m on it I did the following:

Built a triangular arbitrage DeFi trading system that made me 200k

Sped up a face recognition system to from 16,000faces a second to 1.2M faces a second

Created the first version of my nudged elastic band simulator for finding transition state energy

Learnt GPU shader coding and made my first real-time atomic force simulator

All of this while high on LSD, not having the idea and implementing later, but having the idea and then implementing while high,

I do a lot of coding while normal too, but LSD seems to remove all self doubt and makes me come up with creative solutions much much much faster, it’s not a simulation, I am objectively better while using it.

It has downsides too though, usually the day after I am more tired than usual and need a day to just rest, and it doesn't always work, sometimes while on it I just feel like chilling and reading, it's not something that can be forced