My record player sounds slightly high pitched

A few months ago my records started sounding really high pitched. I went in to see if the belt slipped, and it had, I fixed it and then it sounded a lot better, but still not quite right. Which is where I am now. I just switched out the needle so it’s not that I would imagine. My brand of record player is Jopostar, (which is a cheaper brand I think so maybe that has something to do with it?) if that helps. Any ideas?