akiran / akiran/react-slick

Forced reflow - Performance bottleneck

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Descrizione

Hello akiran,

The slider has been an amazing addition for many projects of ours. Thank you.

We were trying to optimize all our apps using several metrics.

A case in which the slider seems to trigger expensive forced reflow of our layouts which is impacting the performance on a huge scale.

We wanted to know if it is such that this issue can be fixed or our implementation of it is not the optimal in a way.

- helpers.js
`getWidth: function getWidth(elem) {
return elem && (elem.getBoundingClientRect().width || elem.offsetWidth) || 0;
},`

Can this be optimized?

![screen shot 2018-06-15 at 11 31 54 am 2](https://user-images.githubusercontent.com/19756463/41452836-237e4f5a-7091-11e8-9c47-665c10a88946.png)

![screen shot 2018-06-15 at 11 46 37 am 2](https://user-images.githubusercontent.com/19756463/41453012-d06f1f8c-7091-11e8-9292-002b617eb29e.png)

Thank you for your time.

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