Pixelmap play speed

Just wondering is there any plans to improve pixelmap play speed fade? It would be nice to be able to do a bit better fade than the current one.
I'm not worried about the jumps caused by the slow frame rate when fading to low speed and asking for frame blend would be a bit too much. But, currently more of a problem is than when you fade the speed it looks like clip is going back and forth. Fixing that would be a great improvement.