@mulveling has given the best advice. 56db is not enough gain for a LOMC IMO. This is especially true of 25mv cart which is very low output. I believe your phono pre is failing to keep pace with the rest of your system. Many people my self included believe the phono pre is as important as the TT itself. You TT far outclasses the phono preamp. Your cart is fine and is not the problem IMO. It falls in line with Origin Live’s heirarchy of Vinyl budget. I’d be looking at a phono pre that is an equivalent match with the TT.
BTW 60db gain for MC is the minimum you should have if you are going to run 25mv carts. There are many more LOMC which have these low outputs, IE Zyx is .24 and my Benz Ebony L was about .26 or so. Lots of the higher end carts can be below .30. So keep that in mind as you proceed.