I work as a teacher (I teach math) and in this situation where schools are closed and are offering distance learning I need to record lectures and share them with my students. Since I need to show how to solve exercises I need some app to use as a whiteboard and an app to record the screen.
I have a MacBook Air (2019) and a Wacom by One tablet, and at the moment I'm using Microsoft OneNote for Mac as a whiteboard and Screenshot (QuickTime) for screen capture. The problem is that this combo is unbearably slow and laggy: it happens that I have to interrupt the recording every couple of minutes because of that, and sometimes the I lose control of the tablet (it start connecting any point I touch with a straight line).
I find the two apps I'm using excellent: OneNote has all I need, and with Screenshot/Quicktime handling the videos is immediate and straightforward, but working in this way is a real pain.
Do you know how can I fix these issues? Or do you have any suggestions for alternative apps?
Update: I also tried ApowerREC for Mac as an alternative to QuickTime, but perhaps it's even worse.