The last few weeks I've really been trying to optimise my route so that I can get over 30 fps on all parts whilst running what is a very complex and busy session.
Whilst spending a lot of time reviewing the performance of assets with a large file size, I'd somewhat overlooked some of the smaller assets. By chance I looked at 3 Ccar assets by misterairbrush and found that they were contributing to a massive performance hit. On parts of my route where I might have been lucky to achieve 27 fps, it's now over 40 fps - an incredible improvement.
Just goes to show how much time and effort you have to spend on fine tuning your routes to edge up performance.