Model looks like a lower resolution than in zbrush and substance painter

When I import my model into unreal engine and apply the textures, the model appears to be a low resolution or something. You can noticeably see the low poly edges of the model. It does not look that way in substance painter. Any Ideas? Thanks.

Can you show us how the model appears in UE4? It’s hard to give advice seeing as we only have a picture of the original model in substance painter. Have you checked your export settings in ZBrush? It might be generating LODs (I wouldn’t know, never used ZBrush) of you model that, while not being used in Substance Painter, would be used in UE4.

As aforementioned, it would be very helpful to see a preview of the model as it appears in-engine. Otherwise, it is rather hard to suggest a possible issue.