Slider: mitigate high cpu usage (#8989)
Slider: mitigate high cpu usage (#8989)

see: https://github.com/ElemeFE/element/issues/8989

Kingwl/element,Leopoldthecoder/element-1,baiyaaaaa/element,Raganof/element,baiyaaaaa/element,huguangju/element,ElemeFE/element,ElemeFE/element,Leopoldthecoder/element-1,huguangju/element,Kingwl/element,Raganof/element