Nothing beats buy and hold, not even close. i did all the testing possible !

I have tried to run all sort of strategies and indicators , ai , backtesting and walk forward, NOTHING beats the standard buy and hold in terms of returns, and i tried many markets too ! did anyone ever find a way to beat it and what strategies should i look into or test ? i'm actually an etf investor in sp500, but i like to do some tests on the side and so far i haven't been able to beat buy and hold and not even close.