When you say downloading MMO games, are you referring to the MMO's on AG? I can't imagine them doing much harm to your computer, since, if there is a download time for one, it's rather short.
Whereas; if it's something like DDO, LOL or Maple Story, it may slow it done since most of them can take anywhere between 2-5 hours.
Calm yourself. Downloads are normally fine as long as they are not huge games. Such as world of warcraft. That takes up a huge chuck or memory.What game do you wish to download?
. My mom's really strict when it comes to downloads
For me its my dad lol... And idk... IT doesn't really have to be just MMO games. It really could be anything. Depends on your computer and properties...
Maybe if you have little space left, yes your computer will probably lag...
You don't download MMO games. If you do you won't be able to connect to the server. What you're saying is, "Does downloading the files to play MMO games make your computer slow? (Which automatically happens when starting the games)" The answer is yes, unless you clear cookies and cache when you're done playing.
Actually MMOs (assuming we are talking about AG's MMOs) take up probably even less space in your computer than normal flash games, because they tend to store game information on the game's server associated to your account rather than on your computer as flash cookies.