Post Timeline supports provide multiple options for scroll easing that can be adjusted through the Post Timeline Page.

The possible options for easing are as follows.
| easeInQuad | Accelerating from zero velocity |
| easeOutQuad | decelerating to zero velocity |
| easeInOutQuad | Acceleration until halfway, then deceleration |
| easeInCubic | Accelerating from zero velocity |
| easeOutCubic | Decelerating to zero velocity |
| easeInOutCubic | Acceleration until halfway, then deceleration |
| easeInQuart | Accelerating from zero velocity |
| easeOutQuart | Decelerating to zero velocity |
| easeInOutQuart | Acceleration until halfway, then deceleration |
| easeInQuint | Accelerating from zero velocity |
| easeOutQuint | Decelerating to zero velocity |
| easeInOutQuint | Acceleration until halfway, then deceleration |
the above settings can be overridden through the shortcode attribute easing.
[post-timeline easing="easeInQuint"]