If your computer can handle all the Java and updates, you're fine. If your computer can't it might get slower.
No, not at all. It requires no Downloading.
Runescape could be slow because of: 1) Your computer doesn't support it 2) Your Internet connection could be weak or too many people on the Internet connection at once causing you to lag or 3) You could be on a world with to many people, when this happens you go to the lobby and choose a world with fewer people on it.
If Minecraft is not running, no it will not slow your computer down.If you have a low end or older computer then playing Minecraft may slow it down a little as it's a fairly hardware intensive game. Just give it as much ram as you can and turn the graphic details down until your happy with it.The Minecraft WiKi has a lot of information on managing the game.
It depends. As a ROBLOX player myself, it has not done much. But, if you have a old, slow, or/and defective computer it may.
Probably about 2 seconds, but if your computer is slow and internet is slow, it will lag and take up to 20 seconds, maybe even make the screen go black (this is also known as a game crash.)
While it's running, yes. It will not slow down you computer unless you are actively using it.
Yes, combat arms does slow your computer down.
Yes, they can take up a lot of RAM and slow down a computer.
Any program that runs can slow your computer down, so yes.
will my computer kinda slowed down.
Your computer might be slow. Slow computers cause accidents and sometimes you have to download JAVA.
it is probably lagging because your in a populated placeor your computer is slow and have virus
If your computer loads slow, then you need to choose the lowest qualities.
No. It is the viruses you download with the songs using LimeWire that slow your computer down.
No, it will not slow down your computer and no it will not give you virus
And?
No.