Not sure if you noticed, but with the SRD battle status Customizer plugin, it seems like its scaling the number images by a decimal number. So even if you scale the images itself it will come out distorted.
With SRD plugin
Without SRD
Viewing post in Odometer Gauge - RPG Maker MV/MZ Plugin comments
Yeah, this is something folks reported on the Discord. You'll want to make a small change to the plugin code to fix this for now:
For the Odometers, go to lines 1328 and 1329 of the plugin and change odoDigit.scale.x and odoDigit.scale.y to equal Neel.ODO.uiconfig.battleXSca and Neel.ODO.uiconfig.battleYSca respectively instead of the dummy value that is there (0.75).
For the Text Labels, go to lines 1398 and do the same to the xSca and ySca variables.
We'll have this patched soon, it is one of those things that we were not able to detect until other people tried it in their own game projects.