Static Objects Crashing my game

Its so annoying, really often I download objects from 3dwarehouse, texture them in sketchup and port them into my map, it takes sometimes really long time, then it crashes my game if I want to load the object. If i take a look at the polygons in Blender, it looks pretty basic to me (in game it says for this hotel object ca 80000 polys) but yeah, also this object crashes my game, please, can anyone tell me how to fix this or how to lower polys if 80000 are too much? Here is the obejct if you need (no textures applied yet)

 

thanks , that worked