I implemented Optick (Brofiler at the beginning of the project) into the engine and used it to check performance of each module, key functions as well as scripts and gameobjects.

To manage changes to assets live while using the engine we needed to check for changes in our files, but with thousands of assets, checking and updating those files is an expensive task that would slow our engine down, so I developed a resource manager that would run parallel to the engine on another CPU threat and request the engine to manage them at due time.

With Optick as my main tool, I checked what made the engine slow down and informed my teammates of what needed to be optimized and what did not, sometimes touching the code myself.