Problem with big font and program speed

Hello, i have 2 problems with audacity.

First, I have a problem displaying the font, it is too large and some characters are not displayed in Czech.

And I have a problem with the speed of the program.
After the start, when I want to record immediately, the program stops for a few seconds and I can’t do nothing, after the few seconds the recording starts, then I must to delete the record and start recording again, and then it works.

Screenshot of bad font displaying: