Unity is a clown engine. I remember some guy benchmarked DOTS, against plain old C++ code with OpenGL, just like your dad used to write, and it was no contest, DOTS couldn't keep up.
You have to remember, Unity usually sets the bar very low for themselves, comparing their ancient Mono implementation (they still use the Boehm GC, written in the 1980s!), and when a shiny new performance 'fix' like Burst/DOTS drops, they proudly proclaim how much faster they managed to make things, never mind a modern .NET implementation, like Microsoft's CoreCLR would achieve the same performance without any proprietary tech, without any code modification.
You have to remember, Unity usually sets the bar very low for themselves, comparing their ancient Mono implementation (they still use the Boehm GC, written in the 1980s!), and when a shiny new performance 'fix' like Burst/DOTS drops, they proudly proclaim how much faster they managed to make things, never mind a modern .NET implementation, like Microsoft's CoreCLR would achieve the same performance without any proprietary tech, without any code modification.