I am having some big issues with Mail.app after upgrade to Lion. Performance is horrible.
When i open a message, cpu usage grows up to 150% See monitor activity screenshot
I already tried to repair permissions and remove all accounts to recreate it but it didn't make any difference.
I'm using 2 accounts with imap. The total messages on inbox is 12.000. Before upgrade, it was running fine.
Anyone experiencing this? Any ideas of what should i do?