I had the same issues with AC 8.2.4 to point that we could not function with AC because of constant crashes and failure to connect. The solution is to go to AC 8.2.5 which is more stable and quicker- Still slow though. For some reason support is not providing this to us. I had to find it on my own. I assume it is because they are so overwhelmed themselves trying to "patch things". I finally received a call from support today after putting in a request last Weds. I had already resolved the problem on Friday with the update. I would be glad to send you the e-mail link if they do not provide it for you as long as you are comfortable installing it. You may want to install it on a laptop separate from your server initially to see how it runs.
