Laptop lagging

Ok,
Processors function as you'd expect them to function - they "process" data
Video cards also have processors. These video card processors process (sorry for the repetitive words) data to be used for the display.
In other words, video processors handle all the display related data - so anything you see on the monitor is handled by your VIDEO PROCESSOR.
Your other processor (the i7) handles other data - security checks, software running etc etc.

So pretty much, you can have the best processor on the market, but with a bad video processor you won't get very high fps.
Same as if you have the best video card for playing the best games at maxed settings and a really old processor, you won't get very far

If its framerate issues, then I suggest swapping out your current video card.
That, however, is impossible on laptops (from what I've heard, at least)

Really if you want good fps just switch to a desktop. :/
If you don't want to, like I said before, call Lenovo customer support (I spent a littleover an hour with Dell, but fixed it in the end) and see what they can do.

Ok thanks for the info.

About loading, im having slow load even though i have 12 GB RAM. Correct me if im wrong, loading of a game involves the RAM am i right? So i dont get why i still slow load with my 12GB RAM.

Yes and no.
RAM is Random Access Memory. The computer stores information into the RAM sticks so when you access the program again it can get to the stored information faster. HOWEVER, Video cards use RAM too, to store data related to the display.
IF a game is slow, it could be:
The Processor
The Graphics Card
The RAM
The Storage Device that the game is installed in

If the game is running slow, try turning all the graphics settings to minimum. If it still runs slow, it means that your graphics card isn't the problem.

Also, Download Memtest86+ - Advanced Memory Diagnostic Tool and run it for a few days to check if it's a problem with your Hard Disk.

Your computer is from Lenovo and they use their own models of RAM, so I can't actually tell whether or not it's the RAM problem.

For the processor, install CPUID - System & hardware benchmark, monitoring, reporting and check that your processor is running well.

If all these suggestions have been done and the game runs slow, like I said before, contact Lenovo.

Sidenote 1: As I said before, you really shouldn't use a laptop for high-end gaming. Laptops were made so you could carry it around easily.

Sidenote 2: If you find that some parts of your laptop are indeed failing, you really can't replace them (except for I think the RAM and Hard Drive, which I believe can be replaced).

Sorry but im a noob about these stuffs. When u mean run the memtest86+ for a few days u mean it takes more than 1 day?

And how do i download it? I found 2 options;
Download (Pre-built & ISOs)
Download (Source Code)

and what am i suppose to do?

EDIT: I checked my processor and theres no problems to it.

Don't be sorry, we were all noobs once :)
Memtest monitors your hard disk performance, so for the best results (unbias-ness) you should run it for a few days (which means keep your laptop on). After that few days of non-stop running, end the test and look at the results (or post a screenshot on to this thread).

For the download:
My bad, wrong link.
This is the right one:
Memtest86.com - Memory Diagnostic

Alright then. Imma try it :)

OK, remember to post back after you've finished and give us some results :)

Sorry to trouble u but, i dont know how to run this thing :|

so you've already installed it? or just downloaded the link?

I downloaded the link. Its a zip file. I extractred it and theres an ISO file.