Font sizes are all huge when playing at a resolution below native

I just got a Lenovo Yoga 2 Pro and logically decided to test League out on it to see how the HD4400 graphics hold up (results -- not bad, not bad at all). I noticed that when I run it at 1080p, below my native 3200x1800 resolution, all of the damage text popups and champ names and stuff were all huge. I attached a screenshot.

The screenshot is actually taken in borderless mode, where my desktop behind it (cut out of picture) is at the native resolution, but the text is still huge relative to everything else in the game. It is the same amount of huge in fullscreen mode.

All that said, I am impressed either with the HD4400 graphics or the optimization for League because it looked really good on medium-low and played at 75 fps at 1080p. Got like 15 at 3200x1800 on Medium and 30-40 at 1080p on Medium. Very manageable for onboard graphics.