Update Tanked Acrobat's Online Reader

Ever since the update, whenever I open a file in acrobat online for my job, it no longer shows the pages along the side keeping up with the page I am on. It often scrolls extremely slowly as well. When I copy and paste from these files, any word with two L's is extremely likely to only have one and an extra space. There is also a frequent issue of it adding a double space at the start of sentences. Doing this has slowed down my ability to do my job severely. I also have to fight to get it to highlight anything to copy it. 

I have opened the desktop app and told it to revert to the previous version of Adobe, but it has not changed the online version and I have not been able to find a way to set the online version to the last update. I’m feeling like paying for this service is not worth it at all.