You could take a small amount off the underside of each end of the bridge where it sits on the adjustment knobs, so that there's less gap to the bridge base. But, before you start doing anything like that we need to make sure that neck angle and action is in the ballpark... then you can decide what, if anything, needs to be adjusted.

Do you have a long straight edge or steel rule? You need to check how straight the neck is, does it have a bow or back-bow? We also need some side-on shots (from bass and treble side) with the neck clamped in place and strings on showing the string height/action at the first few frets, 12th fret and end of the freboard (fishing line pulled taut can also work). Then, if you can (it's tricky to do), clamp the neck in place using a clamp each side of the fret board and sit your straight edge down the middle of the fretboard (le. standing a steel ruler on its edge etc). It tougher to do on a bass as it needs to be long ruler, but with it sitting on the frets and extending over the pickups it should give you an idea of where the fret height/line is in relation to the bridge height. That will give a good indication of the neck angle and show if it needs adjusting in relation to the bridge/saddle height.

Tweaking the neck angle is a big deal, so you need to know exactly where it currently stands before you can assess what or where things need to be adjusted.