Computer won't run certain games very quickly?

I just finished building a computer, and decided to test it out. I noticed that games like Call of Duty: MW2 and Minecraft run optimally, but games like Sonic Adventure DX and Call of Duty: BO run not so well. It doesn't make sense to me that a late generation Xbox 360 game runs smoother than a Game cube release title. Any help?

Will the people at Gamestop update my Minecraft disk?

If I take my Xbox 360 Minecraft disk to Gamestop, will they update it for me? I don't have xbox live, and i can't afford to by an "adapter" (or whatever). When I bought the game, the pictures on the case showed the newest version, so I figured it WAS the newest version, but it wasn't. Would they (the people at Gamestop) be able to update the game (or the disk) for me? And if so, how much would it cost?

Who wants to play minecraft xbox?

Give me your gamer ID and I'm not sureif my ID is right but I think its tallestroom0 but me and my brorher share that acc and I'm not shure so give me your gamer ID

Seed for Minecraft on Xbox?

I'm looking for a seed that has LOTS of Villages. Plenty of Diamonds, Iron, Gold, Coal, etc., LOTS of monster spawners/dungeons. LOTS of animals. LOTS of different biomes all together as well.

The seeds don't have to have all of these in them, I'd just like to have a couple seeds to choose from that have at least one of these!

Too old to play Minecraft?

I have been playing Minecraft for 5 years, an I still love it! But lately my parents have started to hate it. More and more little kids are playing the game on Xbox and stuff, giving the impression that it is a game for children.

My parents keep saying minecraft is for 5 year olds and they have banned me from playing it!

What should I do? Am I too old? How do you feel about the influx of toddlers playing minecraft now?

I'm 15

What should my YouTube username be? - 1

Okay so I've decided I want to make a YouTube Channel and I've come up with ideas for the intro and what games I'd play and all of that… Except for the name. I was thinking something like "Teen____" (something to fill in blank) but I can't think of anything. Here are a bunch of fact about me if it helps…
1. Favorite Color?
Either red, grey/gray, blue, or black
2. Gender?
Female (which I've realized is gonna be a setback)
3. Where do you live?
New York, USA
4. Sports/Hobbies
Karate, Cheerleading, Flute
5. What games or type of game will you make?
I know I will do Minecraft, Skyrim, Escapists, Sims 4 (once it comes out on Xbox One), and as far as type of games I guess Adventure games and every now and then I would like to do some horror games
6. Do you know any other languages and what are they?
Yes. I know a little bit of French, Spanish, Latin, and Korean, and I take German as a language in school
7. What do you like in your free time?
Anything outdoors, games, or hanging with friends
8. Favorite animal?
Wolf

As I made the questions I've realized it probably DOSENT help what so ever but if it did great.