Not that I am aware of. I wouldn't want to mess around with the magnifying function or operating system scaling for elderly plugins.
For an easier life just drop the plugin. Find something that does the same job that suits modern machines, modern screens etc.
So many plugins now have good size GUIs or better still GUI scaling, it's just not worth it. A useful scale is really important, more important than a prettiest GUI - having both is a bonus though.
Most of the time you are drowning in alternative options!