SEO Question – Too Much Content, Page of 25k Words

I published a little controversial article a few months ago and people reply to each other, 200+ comments between 50 to 250 words, the page is now around 25k+ words in total, should I close the comments?

It makes me rank for many longtails and adds fresh content regularly, that a good point but the speed load begin to be the slow load.

Maybe I will let this page growth to the infinite and make a study case but I will be happy to have some answers without sacrifice the ranking of this page….

SEO Question – Too Much Content, Page of 25k Words