mudbox working porly whan working on hgihe res tex maps


HI, i’m working on HP OMEN laptop whith gtx960m 2GB and whan i’m working in mudf box on hgih res texture mudbox freeze up and if i can paint on the model the lines jagged and pixelated.
I wonder if it happens from a hardware limitaion (VRAM, only 2GB) and if i buy new laptop with GTX1050 with 4GB VRAM it will help or thers other problem?