I had my site slow to a halt today when the memory footprint of PHP went crazy. So I've been checking out the impact of the different plugins running, and the one with the biggest impact according to P3 Plugin Profiler is Ultimate Branding.
I turned off all plugins, then activated some (Multidomains, BuddyPress, WPMU Dash, Ultimate Branding, bbPress, AntiSplog, Domain mapping, BP Activity Plus) and with P3, Ultimate Branding was taking about 65% of the load time of all the plugins.
Now I've got about 30 plugins installed, I tried again, and it was using about 35%. Turning off Network Wide Text Change has brought this down to about 8%, which sounds about right because it's filtering everything. I had four entries.
But now I'm stuck with 'Howdy,' at the top again. I can't justify nearly 30% speed reduction to lose it, is there another way? I guess I should just edit the PHP.
Anyone else got the same problems with performance?