Thanks for commenting on that, I didn&#x27;t think about those issues. I&#x27;ll research on how much impact could have on performance.  
In the other hand I believe syntax is not the only difference. I&#x27;m not full time js dev, but after a quick search, I found Domenic pointing 4 differences here <a href="https:&#x2F;&#x2F;esdiscuss.org&#x2F;topic&#x2F;does-async-await-solve-a-real-problem" rel="nofollow">https:&#x2F;&#x2F;esdiscuss.org&#x2F;topic&#x2F;does-async-await-solve-a-real-pr...</a>