Hi
I have set up Retropie 2.2 and I too have jagged edges on the fonts in the games list. I have not made any alterations to the RPi config file.
Here is a screen shot. I noticed that the jaggedness only seems to appear on the right hand side of the game title.
I scraped the metadata for Arkanoid and this seemed resolved the issue. Here is a screen shot after scraping.
I intend to scrape all of my games lists so the jagged fonts aren’t really an issue for me but I thought I’d share that this isn’t an isolated case.