The thing about these trading bots is that if you can really double your investment that easily, you wouldnt be selling it.
Also, huge investment banks pay hundreds of thousands of dollars to bring in data scientists and programmers so that they can try and beat the market by 3-5% at best.
This is ridiculous, but good luck nonetheless.
It is as same as why many experienced and profitable trader giving an offer for the other to copy his trading. It is because made him another income. Beside that when the customer who copy his trade was growing bigger profit than him it is not made him as a losers when the customer richer than him
Except the actual professional traders (who get figures around a 55% success rate) dont do that. You're thinking of the scam "crypto coaches" who make more by selling their programs than they do by trading.
Your bot success rate is due to variance. Let it run for a while and it'll even out.