Returns compared to buy and hold

Hi,
I tried the StockTradingEnv RL demo and the returns are generally noise. I followed this notebook:

https://github.com/AI4Finance-Foundation/FinRL/blob/master/examples/FinRL_PaperTrading_Demo.ipynb

and it was not able to produce anything significant. I deeply respect this project and I've been experimenting a lot with RL for trading lately but haven't yet found anything that as able to truly capture what intraday day traders do and I was wondering whether I'm looking at the wrong notebook? Thanks!