Thank you for writing.
You can consider setting the AnimationFrames
property of the control to 1
. This property determines the speed with which the animation is executed.
.radCollapsiblePanel1.AnimationFrames = 1;
Additionally, you may also consider not populating with data the controls located in the collapsible panels which are not enabled.
I hope this helps. Should you have further questions please do not hesitate to write back.