the actor’s polygons get smoothless and a facet when applying a normal map

I would like to ask about a solution to the issue in Unreal Engine 5.1 where applying a normal map to a material and increasing the normal strength causes the actor’s polygons to break and lose smoothness. For your reference, the normal map was created in 8-bit/RGB format.

Let me know if you’d like to adjust anything.
Thank you in advance!