Internal camera stuttering on MacBook

[TerraMati]

Hello, I recently bought a 2010 polycarbonate MacBook (C2D, 4GB, High Sierra) and everything works perfectly fine except the camera. It works but it just stutters all the time. I checked both on Photo Booth and FaceTime and I have no idea what's the reason for that. I never had this on any of my Macs so I don’t know.

 

[TerraMati]

I've just reset SMC and there is a barely noticable difference but it's not what I wanted. I have a MacBook Pro 15' from the same year and there was no problem there. Could it be the CPU? I don't think it's GPU cause the 320m isn't that much different from the 330m and it's definitely not the ram because I have 4GB here and only 2gb more on the pro. Even my old 2007 MacBook Pro has a perfectly fine webcam.