For some reason my macros are running very slow. Responses that should be instantanous, like sitting after combat, take 10 seconds before they occur. I just ran Charm of Lore and it took forever. Is it me or a bigger problem?
Try using default UI , just so it can be ruled out. Noone else is having issues so it has to be down to something you have in your setup. Are you using WINEQ or anything other that MQ?
your internet connection wont effect your buff request time. You can try disc clean up and disc defrag. Also scan for malware spyware viruses.
Edit
What hud do you use and how many do you run on that computer?
While that deserves for some of us to smack the shit out of you, it ain't your problem.