Engine Choice

We all knew Mojang F#@! up when they made Render Dragn and forced it on every one, they sad it was meant to make the game better and smoother on lower end devices but we clearly see it hasnt, actually from my own personal experience and from what others told me Render Dragon has made it worse, most players dont want render dragon, so why dont they create a new setting that allows the player to switch between the two engines?  between the old engine and the new one the old coding and new, giving the player the option to chose, this is what they should have done instead of just removing the old engine and forcing every one to use the peice of junk renderdragon.  i think adding the old engine back and the old coding giving players the option to switch betweem the two would be awesome that way those who want render dragon can have render dragon, and those who dont can use the old. its a win win!