My PC is suppose to be at least not bad but hes just SO BAD and i dont know why!!

"ive got a medium gaming pc" maybe ~four years ago.. modern games will run with this specs on low-very low of details level & screen resolution set on 1366x768 or lower

Are you sure your games are using Geforce? All core i5's got build in GPU. Geforce 520M got optimus technology which switches between Intel and nvidia graphic cards. If games are running on Intel HD 3000 (my guess is that you got Sandy Bridge i5) their performance will suffer. Check in system tray if you got any activity on nVidia Card if not - you are running on integrated graphic card. Go to the nVidia Controll Panel and switch selected games to run on "High performance NVIDIA processor" (or something similar - mine control panel is in polish) You can also try to Overclock your computer a little - but it won't help much.

Still 520M isn't that powerful. I've got 630M and i5 in laptop and I often need to stay on medium/low settings in 1366x768 to keep 60 fps. And 630M is basically two 520M glued together with slightly higher clock speed. (630M had very good performance to price ratio two and a half year ago) Borderlands 2, Mass Effect 3, Buletstorm and Alan Wake - none of them kept constant 60 fps on max settings and 1366x768 resolution. Battlefield 4 was barely keeping 40-50 fps on medium, with speed drops to 15-20 fps in high intensity moments - I had to switch some details to low to keep gameplay smooth. It is doubtful that you can call 630M mid range graphic card now. 520M is worse than some entry-level graphic cards used today - don't expect anything more from it.

My CoreDuo e7200 + GTX750 + 4gb DDR2 = Ok pc
Yours i5 + 520m(meh) + 4gb (ddr2 i guess) = All seems good enough, cept GPU, but if you have laptop, well, laptops is not for gaming.

i have a intel e2200 cpu and 9500gs GPU :')
will get a new pc in 2 weeks :D

I have an nVidia 720m and it's pretty bad. It can't run Bioshock Infinite at max. So you can imagine how bad a 520m is. Laptop graphics cards are generally very weak compared to their ordinary counterparts.

Awful GPU.

Pretty sure he got the message that his GPU sucks by now... you're gonna hurt his feelings, guys.

gg wp, your midrange gaming PC or laptop is a low low low end gaming PC. In fact it's not even a gaming laptop so, well played!

lol, I've got Intel Core 2 Duo E4600, AMD Radeon HD 4650 1GB, and 3 gigs of RAM, and I can run most of the games, and I'm happy

lol, I've got Intel Core 2 Duo E4600, AMD Radeon HD 4650 1GB, and 3 gigs of RAM, and I can run most of the games, and I'm happy

Is that a laptop? If so, I'm pretty sure it's because your fans/heatsink are clogged with dust. Happens to mine quite frequently. Disassemble and clean it.