Occlusion culling experiment, Need help on my result

Hii,

I culled this straight road with these buildings. In Game mode my FPS is around 300, then i copied the entire road and pasted next to the current road.

I checked from the Occ camera, the copied road was also culled and camera only renders the buildings according to its view distance, perfect…i wanted the same.

Next, i then copied it 10 times, all were culled but this time my FPS is 100

What is wrong in here ?
What do i need to do to bring back my FPS ? Please advise !!

issue resolved

I’m always interested in how others manage to use Umbra,

Do you mind sharing your experience? Best practice or results? Like how did you got around the unique scene baking problem?

Thanks