Blocks can display one slide, which always has the same size as the block itself.
The Block type has some new options which you can use.
Animations tab Pro
You can find these options at of the Slider settings → Animations tab.
Ken Burns Effect
You can enhance your slide background images with a cool zooming and panning effect.
Defines how fast the effect will be.
Defines how much bigger/smaller your image can get from it's original size.