For a month now i've been trying to get screencasting to work properly on eOs. I used Kazam and simpleScreenRecorder. But I get very low fps with them. While I was getting normal 30-60 fps on other distros. I have nvidia gtx 650 graphics card with 346 propriatery drivers. Usually when I try recording with webm format fps goes down to 2-3 after 4 seconds and I lose sound. In mp4 is better but file sizes are huge. Has anyone had luck with this on Freya? I would love yo know.