The i3 CPU is generally a poor performer, and in the case of this CPU, it only has 2 cores, so the performance is going to be pretty bad when dealing with the OS, UE4 Editor, and anything else you are trying to work on. 8GB Ram is also very low when working in Unreal Editor, I would recommend 16GB of ram for a reasonable level of performance. Seeing that this laptop has an i3 CPU and 8GB ram, I am assuming that there is no dedicated GPU, which means it will use your i3’s integrated graphics, Intel UHD 620, this too is an incredibly weak performer in Unreal Engine. If you were strictly working on a 2D game, you might be able to get away with this. Though in that case, I would recommend Unity for a 2D game as it is very light on editor resources.
I would also recommend buying a desktop, you don’t have to spend that much to get a decent small system setup to work in Unreal Engine comfortably. There are MANY notebooks that will give you a great working experience in Unreal Engine, they in general are cost prohibitive, especially when compared to the cost of desktop. Good luck!