Yeah slowness is definitely ":("-worthy, but in my experience Confluence performs pretty well. It really depends how it's installed and how the database is setup also.
And the search is weak, I agree, but I haven't experienced any significant problems in scaling or Jira integration. It's also much more pleasant to deal with than SharePoint.
For technical-only teams, I highly recommend MoinMoin. It takes some hands on administration (maybe it's better now, I haven't used it for a couple of years) but it was worth it for the flexibility, plug-ins, and the fact that it stored pages in plain text files.
And the search is weak, I agree, but I haven't experienced any significant problems in scaling or Jira integration. It's also much more pleasant to deal with than SharePoint.
For technical-only teams, I highly recommend MoinMoin. It takes some hands on administration (maybe it's better now, I haven't used it for a couple of years) but it was worth it for the flexibility, plug-ins, and the fact that it stored pages in plain text files.