Thanks for the link.
One of the tweaks listed there changes the default IO scheduler to "noop" (NO OPeration), a scheduler that doesn't do anything. For SSDs, I prefer the "deadline" scheduler myself.
He disables Firefox's disk cache and offline storage, a reasonable choice on a small, slow SSD
Another tweak sets up several write-heavy directories as RAM disks. I don't like setting my log file dirs as RAM disks, 'cause I might want to read old logs, but pointing them to a RAM disk should improve performance. I do like putting "/tmp" on a RAM disk (that's a tweak I perform on all my PCs).
I should probably put a post together listing some of the tweaks I use on my Mini 9.