For those using their scopes to track the Sun during the Eclipse, according to my LX200 Classic manual the Freq option should be set for 60.0 Hz. for the Sun, and the Moon rate is 57.9 Hz.
With the Autostar controller the options are under Tracking Rate in the menu. I have not done this yet, but my searches mention changing to a custom rate of -3.
It is a small percentage change from the standard tracking rate of 60.1 Hz that the LX200 usually runs at, but some might want to use it.