The frame rate is the number of frames or images that are projected or displayed per second.

Step 1 Your default frame rate is set to 30fps but you can  change it according to your need ,  To set you frame rate first go to the app settings

step 2 In video settings , Tap on frame , you can see various options of frame rate , choose one according to your desire and click ok to save. 

Step 3 You can set up frame rate upto 90FPS .

Watch the video tutorial below to know more.