Apparently 10 times more performant than Unity/Leadwerks:

Quoting the dev: > I am sorry people are making fun of you just for asking for a game engine with good performance. I realized this was a big problem when I was working on VR projects for NASA, and saw how bad other the performance of other engine was. I created a new Vulkan-based game engine designed specifically to solve performance problems in real-time games, and the results turned out much better than I realized was possible. This is the website:[https://www.ultraengine.com/](https://www.ultraengine.com/)

Ultra Engine will run about 10x faster than Unity under heavy loads. You can try the benchmarks and see for yourself. Maybe it will help you. Good luck!