Can't tell the speed from here on the ship as everything is slow from here.
But the speed is not related to the other night. Today is the first of the month so the system is doing a lot if work today, full backup rotation, log rotation, stats processing for the last month etc.
Normally when it's rotating logs and doing the monthly stats processing it is normal to see gateway timeouts for a few minutes.
I've noticed slowness for the past couple of days. It seemed to start after the downtime so I presumed it was related and/or somethings aren't re-tweaked. I'm seeing "Page time" in the 1 to 1.5 second range quite frequently. What's really noticeable is clicking the "first new post" link on subscribed threads - it will load the page slower than normal, sit at the "top" of the page, and then eventually jump to the newest post (this is taking quite a bit longer than the 1-1.5 seconds mentioned already).