I used to have a 1230 and speed began to be an obsession. A lot of Ram works indeed, copying stuff to Ram on startup helps even more but increases startup time of course. Faster memory helps also, but there's a limit. Adding a PCI busboard and use gfx cards with loads of Ram, a Voodoo5 with 64 Mb for example, and let that superfast Ram be used by the system. Overclocking is tricky. There is not often much space left to do, especially not on a 68030/50.
And everybody knows that you don't need to load many programs at startup because those things will slow down the system (unless they are patches).