It's not necessary to remove poorly performing sources from your AI trading strategy.

Since each source used in the AI trading strategy validates good and bad buy and sell signals for each trend on every trading pair, it's possible that a source performing poorly on one trading pair may perform well on another.

If you're using more than 15 sources in your AI trading strategy or if the trading strategy checks take too long, then you may consider removing a poorly performing source. The fewer sources you use, the faster the AI strategy can be checked.