Reply to a message TheUpSide sent me. The message to his reply was pretty much the same as his last post;
"Well because it's constantly saving and sending packets back and forth - sending and recieving. So the browser that is being used by a player maybe taking up a lot of their CPU usuage.
This would affect the exchange between how fast a game is (some people have mentioned the game runs slower - graphically - on MacBooks) and how much it's recieving.
If it's recieving more than it's sent, or vise versa, then the game would run slower.
This may be down to people's Internet connection though, but I have a 2mb connection. Running on my W7 side runs a lot faster - graphically - than on my MAC side.
On my MAC side when scrolling across the map it lags slightly, not a lot, but it's noticeable, and it was in Firefox I'd get the 'Server call failed - press ok to refesh' box pop up, or the login queue failure.
When on W7 however I've only had this once, and that was because my PC went to sleep.
So it shouldn't be the speed of someone's Internet that's a problem (unless they have 56k, lol).
So I think it may be a combination of the browser the player is using, and how much CPU usuage their broswer is taking to run the game, compared to how much of the data is being sent back and forth to the server.
Just a hunch, but it's the only explanation I can think of for these problems."
Could also just be the server and user's sending and recieving rate.