Time lag during screen share

Hi,

Since downloading the latest version  (Version: 5.7.6 (31792.0820 ) I'm having problems when sharing screen (something that never happened before). I can still see and hear participants well, but I see myself with a time lag and kind of weird slow motion movements. And if I try to share a video it also plays out of sync/with time lag.

has anyone else had this problem? I'd be very grateful for any ideas how to solve it.

Thanks, Sara