Increase performance of box-shadow

I think it's quite likely the answer is n开发者_如何学Co, but someone might know something I don't.

I've got an image gallery with sorting buttons that, when clicked, sorted the gallery in an animated style using Isotope. Each image has a nice box-shadow around it, but the animation is sluggish and jerky, due to having to render the shadow all the time.

My question is this: Is there a way to speed up box shadow without changing the blur radius, etc?

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I suspect there's no way to speed it up.

Have you considered toggling off the box-shadow while the animation is running?

Does the box-shadow use an rgba colour with transparency? Maybe it would be faster without transparency.