I had a scaling problem on my 4k monitors with 1.7 and I found a similar issue with sqldeveloper. I ran across a solution posted in the forum over there... which I applied to VA 1.7 and it worked great... only to find out that 1.8.2 was out now and my scaling issue was resolved
without that solution after updating (great work!!).
Here's the short version for anyone who might want to try it...
1 Find your exe and right click on it
2 Click on Properties
3 Select the Compatibility tab
4 Click on the Change high DPI settings button towards the bottom of the window
5 At the bottom of the new pop up under High DPI scaling override, check the box for "Override high DPI scaling behavior"
6 From the dropdown select System or System (Enhanced)... Try each independently and see what works best for you. For me, enhanced created an issue with dropdown arrow button alignment in 1.7.
More info here
https://www.digitaltrends.com/computing/how-to-adjust-high-dpi-scaling-in-windows-10/)
For me v1.8.2 looks sharper and clearer natively with correct sizing in all cases except the dropdown arrows still look pretty small, but I'd rather have a tiny arrow than have blurry text so it's really no big deal. (I have the global scaling set at 200% in case that makes a difference)
As a footnote, I didn't try the Program DPI checkbox since my monitors have the same 4k resolution, multiple display setups using different resolutions might want to check that out though.