css - Why "Composite Layers" takes so much time? -

i'm profiling list infinite scrolling , data lazy-loading. can cause long "composite layers" phase?

and

if interested in details list:

• the list has limited number of physical row elements , uses "transform: translate3d(...)" reorder them when scrolling.
• chrome paints each row in separate layer.
• there 25 layers in entire browser page.