Problem with setting up the material

I’m new to the Unreal engine. I’m used to work in unity.
I have a problem with setting up the material with textures exported from SubstancePainter. The first problem is that the model looked too glossy with png textures, I exported textures in tga format and the model began to look much better, but it is a bit glossy and dark anyway. The second problem is that the normal map looks weird, it is look like the model is in smooth shading.

This is how the model looks like

This is how the model looks in Unity

Model in unity with and without NormalMap