Yeh and because compositors had to pull from X and push again, it added additional latency and work (having to copy around buffers). Wayland (as an API) was de

Yeh and because compositors had to pull from X and push again, it added additional latency and work (having to copy around buffers). Wayland (as an API) was designed to solve, which is why in theory it's supposed to have better performance, latency and power efficiency, although it hasn't worked out great in all cases.