Request: Foscam not able to set framerate

The foscam intergation works fine on my FI9900EP, although I am not able to set the framerate like with a normal JPG stream. (see below code)

I have tried a JPG stream, but these seem to stop working after a while and the camera’s webinterface hangs.

camera: 
platform: generic
still_image_url: http://IP/cgi-bin/CGIProxy.fcgi?cmd=snapPicture2&usr=USER&pwd=PWD
framerate: 2

Is it possible to add this feature?