Yes, by default my PC uses a 125 % of text size(Recommended Size). Honestly, since there are so many errors I already chose the option that doesn't show any unique icons but it is still not near 25 % of r228's performance. My projects becomes more unresponsive the more that it enlarge. So naturally I reverted back to r228, which I am using now.
To answer your question if I am using a low-DPI display. I believe I am since I didn't change it before and until now. The problems are so significant that I believe that the DPI display settings that I am currently using can't be the reason for this.
If you are asking us Ashley to find a workaround for this by our own, we will surely fail and eventually this program will become unusable for us.