That saw is a challenge
If that's the one where the table stays flat and the whole blade and arm tilts.
I would NOT invest in any improvements other than a good blade. :no:
It's just not worth it. It's probably OK for hobby use, making toys, cutting out shapes in 3/4" thick plywood or other materials, but it's not a good saw for woodworking tasks in general. You need better guides, more rigid construction and probably a better motor. I have a 14" Craftsman bandsaw with a built in type 1 HP motor, but it's the traditional design where the table tilts, not the blade, a very nice saw.
As an aside, as far as I know, that tilting blade design was "borrowed" by a classmate of mine who worked for Sears after we both graduated from U of I Design school. See My Photos for the model I built in 1966 before the Craftsman saw came on the market.