I’ve been using this site for about a month now and I’ve noticed that after about step 50 or so in the longer lessons the text editor, or online IDE for lack of a better comparison, becomes really really slow. When I type a word on my keyboard I have to sit there and watch it slowly show letter by letter. As I get further into a lesson with later steps it gets worse. Also while I’m waiting for it to finish displaying what I’ve typed my mouse is not displayed or able to be used within the browser window itself.
I’m using Firefox 128.0.3 (64-bit)