Generally speaking if it does not fit then you have your screen magnification too high and must have a very low resolution screen.  I am guessing you are visually impaired which is why you use such a large scaling factor?

The start8 configuration dialog is not very large so I imagine other dialogs also do not fit on screen.  Unfortunately it would be a considerable amount of work to make it scalable and this cannot be justified based on the extra sales it would generate as I think you are the first person to report a problem like this.

Start8 will automatically check for updates though, so you do not need to access that button and the popups which appear when there is an update will appear in the middle of your screen.

That's a very low dpi screen (49 dpi in fact).  32" monitors would typically be 2560x1600 or higher.  That sounds like it is a low end TV being used as a monitor.

At 150% scaling that resolution is an effective 912x512 and that's way outside our minimum specification and I imagine the OS would have warned you about dialogs not fitting when you selected it.

As you say making the window sizable is easy (though it is not .net), making the controls reposition is less so.  That's additional development work & a lot more QA for an issue that can only happen if you run at a resolution lower than our minimum specification.  The config UI dialogs are carefully laid out and the dialogs are the smallest we felt was reasonable.