Latest Jetpack update is faulty

I am the creator and admin on several sites and an admin on another site. The site on which I’m an admin only, the jetpack plugin crashed the entire site. Once the plugin was deactivated, the site went back to complete functionality.

On my sites, the Jetpack plugin slowed down any kind of process involved in creating more content, even text entry. I would type a word and have to wait up to 45 seconds or so for the text to appear. All of the slow processing was resolved once I deactivated the plugin.

I hope you can resolve these issues in the next update.