Laptop no longer performs as good as before (1 year ago)

[Josh Lintag]

Hello guys! I have a problem with my laptop
It's an MSI GE40-2OL , i7 4710MQ, 4gb ram, and GT 750M
Right after I got it, I went straight to play games such as Bioshock Infinite and Tomb Raider. Before, I could play games like these at high without any problem at all.
Right now, I could barely play the game at low-medium and it makes these cracking noises at my headphones or speakers. They actually sound like radios playing static noises for like a quarter of a second. (more like static pop sounds that distort's the game's audio)

this is my memory usage when playing Far Cry 3 for example, if it's a RAM problem although I'm not sure
http://i.imgur.com/jrujzuP.jpg

I've tried reinstalling Windows 10 but the noises and lags are still there. help?

 

[webworkings]

Have you tried updating the sound drivers? Also, try the following...

1. Go to "Control Panel".
2. Click on "Sound".
3. Make sure you are on the "Playback" tab.
4. Click on the device you are trying to fix.
5. Now click the "Configure" button and follow the prompts. (Be sure you also click the "Test" button.)
6. Once that is complete, click the "Properties" button.
7. When you are done with your changes, in "Properties", click "Apply" and then "OK".
8. Then click "OK", again, on the main "Sound window".

If none of this helps, your sound card may need replacing.