Dolphin became slow after some days of use. What could it be?

[admin89]

Quote:integrated card

Integrated GPU , even your Nvidia GT 650M is not a "card"
Integrated GPU is built inside the CPU while Dedicated Nvidia GPU is a chip which was soldered on the motherboard .

Quote:runs fine with 2.5x internal resolution,

Depending on the game . Intel HD 4000 can handle 3xIR on some "light" games . Demanding games will chop off that GPU even if you're using 1xIR . For most games , 1-1.5x IR is recommended