Preserved Collection Optimisation

Title pretty mkuch says it, I'd really like to have smoother gameplay on the preserved collection routes, mainly GWE, I get anywhere between 100-140fps on routes like SEHS, and I get 40-70fps on GWE and other preserved collection, anyone else experiancing this?

 

DTG are working on optimizing the game which will take a long time

 

I don't mind waiting, I didn't know they were already optimizing it