Reshuffling SIP

Had this question in my mind for quite sometime. So I have invested in 5 different types of mutual funds (none are thematic).

One MF has been performing very badly even before markets started correcting in Sept end. So this month I stopped SIP in it, keeping the money that is already there and allocated that money to other existing MF I alr invest in. Do y'all churn MF like this? If yes then how do y'all decide when to pull the plug and where to invest.