Double piston extender not fast enough

Even thou I said iPad Pro, I actually have an iPad 6, which is not on there, so please add that.

So as I said, the double piston extender is not fast enough, actually it is basically not fast enough itself. I am design ping a 3 by 3 piston door right now, and I want to make it compact, so instead of using 2 repeaters for the middle piston, I hope I can just use one repeater for the middle piston. That really helps. I think the piston in bedrock edition should be the same speed as a java edition piston.