I have a PC (Dell; 8th Gen i7; 32gbb RAM; SSD). When I access the library icon at the top of the screen, I experience a typing lag when entering text in the 'Find Resources' box. Not so, if I access the library via control L or pull the library icon into a set window pane.
A second problem: the word 'the' is highlighted in all my resources, although I have not added a visual filter or highlight to the word.