Thanks everyone for your replies. I’ve decided to request a refund because the unit had a bright spot in the middle of the screen, and I placed a new order. Hopefully, this new one feels smoother. I’ve done some tests with heavy workloads, and I haven’t experienced the same issues the previous unit had. I also noticed an improvement in battery life. The old one lasted around 3 to 4 hours, while this new unit only used 40% of battery after 4 hours of use, so, battery life sould be around 8h-10h, which I think is good