The cost of parsing JSON
An interesting library I've found that tackles this issue is 
yieldable-json: <a href="https://developer.ibm.com/node/2017/11/13/yieldable-json-asynchronous-json-module-node-js/" rel="nofollow">https://developer.ibm.com/node/2017/11/13/yieldable-json-asy...</a>