Backend Load Times

We have a few sites that are experiencing increased backend load times that makes them inoperable for extended periods of time while waiting for the load to complete, or makes them hit the timeout limit set in PHP. In testing, we've come to the conclusion that this is likely due to your extensions installed on the site and the issue described here: regularlabs.com/forum/bugreports/48976-c...ease-try-again-later

In debug, it's reporting each extension 10+ seconds to check for updates. That time is adding up and hitting the site's timeout, erroring out the backend when a user navigates it. We were hoping you might have a solution for us beyond uninstalling the extensions until Joomla fixes what they need to on their end. We've tried disabling the update sites for Regular Labs extensions, as well as turning of the check on page load within Extension Manager, but neither seems to entirely resolve the issue.

Any assistance you could provide would be appreciated. If you need access to a site to check this out on, I can provide credentials.