Smooth rotating text

I need to have rotating text on an OSx application I am making for performance. I have been using truetype font and have better results from drawStringAsShape and enabling antiAliasing. However I want more- of course. The text looks good when I just draw it but obviously rotating it makes it look a bit worse and for this project the text s very rarely on the level.

Does anyone have some tips on how to achieve smoother fonts- as it for a show I tour I also need to be able to adjust the size as we move venues.

I tried to draw the fonts first into a large FBO and then draw the FBO smaller than its real size but I could not really notice much difference.

At this point in the project I could also switch to using premade text on transparent PNGs instead of drawing the fonts- is this a better way to go?