My laptop is getting slow

I have a HP VICTUS 15-FB1013DX and its like a year old, but its getting so slow, im planning to sell it to buy a pc or building one but i cant sell it if its so slow, i tried playing a game of fortnite performance Mode and everything in low but its getting 20-40 fps and idk what to do,I have my drivers installed, the laptop plugged in and nothing works please help me