This will free up some memory for screen recording.
If your frame rate is very low or your video appears choppy, try closing out extra browser tabs and applications. NOTE: Screen recording inherently requires significant processing power. However, you can adjust both your recording resolution and maximum frame rate if you'd like.
By default, Screencastify records at the maximum possible resolution based on your device's screen and up to 30 frames per second (this depends on your device's available resources).
Screencastify makes it easy to customize your video recording settings.