Thanks for the reply sir. I have one more question. I was very excited to use quantum, so ended up using developer edition. I am using it on my macOS High Sierra.

The battery usage and Energy impact that I observed from Activity Monitor application in macOS was very surprising.

Both parameters were quite high and the battery was draining very quickly. I don't have the screenshot. I tried searching for a solution like tinkering the about:config fields etc. but couldn't find any.