Safari history items have absolutely no effect on Internet connection speed. Clearing the history will have no benefit.
I understand why you might feel that way, but no, you don't have a lemon. We just need to troubleshoot and diagnose what the problem is. Just for grins (it may or may not apply in your situation), you can check the following locations for apps that automatically launch on startup and delete any you don't need/want:
- System Preferences > Users & Groups > yourusername > Login Items (SL and older: System Preferences > Accounts > yourusername > Login Items)
- In Finder, click Go > Go to Folder > /Library/LaunchAgents
- In Finder, click Go > Go to Folder > ~/Library/LaunchAgents
- In Finder, click Go > Go to Folder > /Library/StartupItems
Do I just put the ones I don't want in the trashcan? Sorry Im a new mac user.