WordPress Speed Up Service | WordPress Website Maintenance Packages Reply To: Anything in 4.9.2 that could cause MASSIVE slowdown – time to first byte?, by rossagrant Appreciate that heads-up on the Health Check plugin mate – it’s great. Yep, I can confirm, it wasn’t 4.9.2 at all. The MAJOR slowdown was being caused by a plugin called Easy Social Share Buttons. I deleted it, got rid of all old options and the site is LIGHTNING fast. Apologies for the red herring on 4.9.2 – all is now good! Reply To: Anything in 4.9.2 that could cause MASSIVE slowdown – time to first byte?