Unreal Engine 5.5 has an fantastic list of performance related improvements. It took me a while to make and trim the list to be digestible enough. I've added some commentary where I felt it was worthwhile.

Some of my favorites to try out include built-in Tick Batching (previously we had to do this manually, as demonstrated in my Aggregating Ticks lesson). Input latency markers in Unreal Insights is great to clarify how long your input latency is and to make steps to improving this. Ofcourse MegaLights is very promising, but even just the improved render parallelization is exciting as this should help reduce stalls/waits on the threads that are historically more difficult to optimize and easily bottlenecking.

I've turned the highlights into a full article over at my blog with a LOT more awesome changes!