If your going to use stills with the fade in fade out, movement effect (Ken Burns), then using an off the shelf program is going to require high bit rates (probably 5,000 kps minimum), or you'll have to go to a more refined program like motion or after effects that has more refined processing for these type of transitions.
Also try a higher frame rate, i.e., 30, 60 etc. as you will get less jerk and strobbing.
IMO
BC