Why are small fonts harder to read in Fedora 25 than they were in Fedora 24?

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In Fedora 25, small fonts are difficult to read. Specifically, I use Sans Serif size 7 for everything except Terminal. When I do this, the letters seem to blend together at different times. In Fedora 24, I can do the same thing and have no issues as the text is always clear and legible. Has anyone else experienced this? I have tested on different model laptops with the same results. I run Plasma 5 as my UI.