I will say, I don't see any issues or errors on the site. I can't say it's massively faster since the upgrade or anything, but it's working fine for me.
It might be interesting to go to SpeedTest and post the result here. Maybe your ISP is having issues, in the past I have actually had issues with Verizon FIOS, and I'm supposed to have gigabit fiber! Periodically I do a check to see if they're screwing up again.
Any speed issues are very unlikely to be at my end as well, things are working fine.