Optimization in Level Design - Halfway done!

Hi folks! It's been a while and a Happy New Chinese Year! Well, I finished the main parts of the level before 2018 lol, yes!!!... and there is still sooo much to do! I made the last section that will connect my two seperated maps into one! I will reveal that part at the final stage and some other secret stuff to create a small hype since I won't create any more content.

What I'm currently focusing is optimization and it's already halfway done :) The map has very long open roads which renders a lot of stuff!
It's a time consuming process, but it's worth it since the map is so big with very long roads and wide areas... so every FPS counts!
Here is an example of a bad FPS spot: (Stuff gets rendered behind the buildings)