Improve computer performance?

Hi! I have a computer with these specs below:

Operating System
Windows 8 64-bit
CPU
Intel Core i5 3210M @ 2.50GHz54 °C
Ivy Bridge 22nm Technology
RAM
6,00Gt Dual-Channel DDR3 @ 798MHz (11-11-11-28)
Motherboard
LENOVO INVALID (U3E1)56 °C
Graphics
Generic PnP Monitor (1366x768@60Hz)
Intel HD Graphics 4000 (Lenovo)
Storage
698GB Seagate ST750LM022 HN-M750MBB (SATA)51 °C
Optical Drives
Optiarc DVD RW AD-7740H
Audio
Conexant SmartAudio HD

With these specs, I get 10-15 fps on games like Just Cause 2 (demo), Crysis warhead and GTA 4. Only game where I get over 20 fps are Indie Unity game, Trackmania and Minecraft. Is it normal to get 10-20 fps with these specs? Can I improve my performance somehow?

I just updated my drivers and use the "Highest performance" power plan.
I have a Lenovo G580 laptop.

Can i charge my laptop with a different laptop charger brand?

So i have a lenovo G580 and my charger recently broke. The charger was 20V so I borrowed from my friend a Delta charger with 19V and it works will it cause any damage to my laptop? Sorry but i really suck at these kind of stuff.

Lenovo Thinkpad Edge E531 is randomly closing my browser?

I'm not a technical perosn and sorry I don't know all the terms. I'm really, really hoping someone can help me get this touchpad under control… It's driving me crazy! I've been a Lenovo/IBM laptop fan for years and this has been my least favorite model by far.

I use the Pointing stick to move the cursor on the screen and the touchpad only for clicking. I've tried different settings with this touchpad and none of them are good. I miss the separate left and right click buttons on the previous models. This one has the rectangular touchpad and you have to click it in the PERFECT spot on the left or right or it won't do what you want. Sometimes I have to hit it witha little force to get it to acknowledge I'm trying to left or right click. I'm going to end up break it.

The worse issue (and I hope someone knows what to do here) is the browser keeps shutting down if I accidentally move the cursor to the top/right corner and sweep through that area. I'm using the pointing stick to move the cursor and just laying my hand slightly on the ouchscreen (but applying NO pressure) and it shuts down whatever webpage I'm reading if the cursor accidentally moves over into that corner. It happens at least once a day, then I have to open a new browser and locate the site I was on.

I'm tempted to think the touchscreen is set to a sensitive setting that's the problem BUT I have hit the touch screen with a little force to get it to right or left click. So I don't think changing the sensi

Advice on buying a laptop?

I'm going in to collage and I'm looking for a good laptop to type up papers, use the Internet and maybe watch movies. I would like it to be pretty inexpensive to. I know very little about computers so any help will be much appreciated.

Why does bitdefender keep trying to install?

I just barely got a new laptop ideapad y510p and it came with mcafee and I thought it might be a better idea to et bitdefender another antivirus software because I had read a lot of good things about it but I was almost ready to replace mcafee with it and I decided I didn't want to risk anything and so I cancelled the download at the final step now everytime I log on to my computer the first thing that comes up is bitdefender trying to download how do I get it to go away or should I just replace mcafee with it

New laptop won't stay connected to Internet?

I bought a new Lenovo laptop recently. It will connect to the internet, but not for very long at all. It just randomly drops for no reason and then I can't reconnect to it. It also messes up my phones connection as well so I have to use my data. We have tried unplugging and restarting the interest router thing but nothing is working. What should I do?

Best cheap laptops for elgato HD capture cad?

Hi, i'm starting to record you tube gaming videos an i currently record on a Cyber Power Gaming pc but i want a portable thing like a laptop, a cheap one that will record it smooth and just good. Links will be appreciated,

Added (1). GUYS NOT A GAMING LAPTOP, A LAPTOP THAT CAN RECORD MY XBOX 360 USING THE ELGATO HD CAPTURE CARD GOOD.

What does Minecraft depend on?

Is it ram, cpu, or graphics intenisve?

Also can this run it on max settings with 25+ FPS

AMD A10-5750M Quad Core APU, 2.5GHz processor
8GB DDR3-1600 MHz RAM
1TB HDD, 5400 RPM hard drive
Integrated AMD Radeon 8650G graphics

(Prebuilt Lenovo laptop)
ps. I might play BF4 If its possible?

-Thanks for the help.

Which of these 2 laptops?

Looking to buy a new laptop, narrowed down to these two:

Acer aspire e1-570
Lenovo G500