This problem seems fairly simple, but I'm a noob to Blender and I have no idea how to fix it. Basically, I have this model which displays this in the bottom-right of Blender 2.8:
However, when I export the model to FBX, and try to use the model in Unity, it seems that the number of polygons has absolutely exploded, as it's over 30 times what appeared in Blender. This is what is displayed in the VRChat SDK:
So, what's going on? What's causing the amount of polygons in Unity to be vastly higher than the amount of tris in Blender? Is there some kind of automated smoothing when exporting, if so how can I stop it? The model's fidelity when displayed in Blender with 18,510 tris is plenty good enough.