Foxit is actually pretty good at processing comments in a timely manner. Can recommend it for this purpose

It is still an issue in 2022. It is almost impossible to work on a file with more than 1000 comments; it is very slow, lags, and freezes. When you open 2 files with more than 1000 comments, Acrobat can't handle it anymore. It will stop working; it leads to: "(Not Responding)" forcing the user to quit Acrobat.

I have tried all the possible fixes/solutions and workarounds, but they do not work.
Our office and I have a fast laptop: Intel i7, 32GB RAM, and an NVIDIA Quadro T1000 for the graphics card.

When could we expect a resolution for this?

the same problem here! ADOBE fix this

Still the case in 2020, come on adobe, its not that hard! comments are text, why is a few kilobytes of text wrecking my user experience? Please spend the time to root cause and fix this issue. I have adobe pro, it sure doesn't feel like a professional product in this regard.

I cant even remove the comments, Im really pissed about this.

I am again getting frustrated by how unusable Acrobat DC is in a professional design environment. Trying to mark up a 56 page PDF is excruciatingly slow. I am working on a brand new 2020 MacPro with 192 Gb RAM, there is no excuse for this awful software that I am paying for as part of my Adobe CC subscription.

Adobe, SORT IT OUT.

Similarly, why is there a 1000 comment limit? If I am proposing edits with a strikethrough (as a proofreader), and each page has ~10 errors, sometimes as inncocuous as an apostrophe instead of a quotation mark, then I use all 1000 comments in ~100 pages without even using the more substantive comment discussion features...and I'm working on 600-1000 page manuscripts. Please help me