hi, I recently buy the ASUS ROG Hero Edition specs: 15.6-inch 1,920 x 1,080-pixel IPS display 120Hz Intel Core i7-7700HQ Windows 10 Home 4GB DDR4 RAM NVIDIA GeForce GTX 1050 4GB GDDR5 VRAM 128GB PCIE Gen3X4 SSD 1TB SeaGate FireCuda SSHD 2.5kg My problem is the laptop is lagging frequently. During browser, open file and the most annoying was during watching movie. if movie, then it will suddenly refresh the whole screen(became black for a second). however, there is nothing when playing games. someone help me please. is it RAM or the laptop itself the problem?