I had the same issue. I fixed it. In my case, 'slow keys' was turned on. If you are using ubuntu like me, on top right area of your screen beside brightness settings you will find an option with human icon.
I had the same issue. I fixed it. In my case, 'slow keys' was turned on. If you are using ubuntu like me, on top right area of your screen beside brightness settings you will find an option with human icon.