No, you cannot. If you want better gaming performance, then you need to buy a new laptop.
Only a few specific gaming laptop models that costs at least $1,400 will give you the option to upgrade the GPU. These laptops use MXM format GPUs; think of them as mini-PCIe graphic cards for expensive gaming laptops that has a MXM port. I need to stress "specific gaming laptop models" because you can buy a $2,600 gaming laptop with a dedicated GPU that is soldered into the motherboard.