Hi! You should be able to click the ' - ' buttons on the right edge of the ui to collapse some of the knobs and reduce the height of the UI. Then, as the bottom of the window is revealed you will find the scale factor buttons labelled 50, 75, 100, etc.
I think 50% or 75% should work in your case.
This change is saved automatically and will apply to all plugin instances so you only have to do this once