The frame rate of a movie can be set using the Set Frame Rate dialog. This frame rate is used in normal playback and is used as the default when exporting movies.
How to set the frame rate of a movie:
On the Player main menu select the Set Frame Rate… option from the Edit menu.
On the Basic tab set the frame rate value appropriately. The default is 25 frames per second. There may be occasions when you wish to reduce this value to improve playback on lower spec PCs.