Samsung np-r538 laptop is runing with normal speed in starting time but it becomes slow after used few months and when you run bluestacks, nox player, memu app player etc. on this laptop, it become hanging and slow hasty. if we think about its camera, it’s perform is very low from starting, it capture low quality picture. if you are want buy this laptop for business, e-mitra or online hard activity, it is not good for your choise because it’s performance is very slow after using some months.