I am back from a big vacation and so got tons of photos. While viewing them on mg laptop I saw some slowdowns after a while - usually after an hour of photo viewing.
This was observed on Linux mint. On windows 10 there was no such problem. So I looked around and the system manager showed huge memory taken by cinnamon.
I logged out and relogged in, and it would clean it up but after half an hour again we would be going back to the sluggish state.
This has me irritated and I'm thinking about changing back to Ubuntu. Let's see.