Isn't the VQ-VAE/dVAE generator approach in the DALL-E models quite a bit cheaper computationally than latent diffusion models? My understanding was that diffu

Isn't the VQ-VAE/dVAE generator approach in the DALL-E models quite a bit cheaper computationally than latent diffusion models? My understanding was that diffusion models were quite a bit more expensive, but yielded richer latent distributions and better images (for some definition of better).