I'm at the tail end of my career, so working on efficiency gains like this doesn't usually add up for me.

However I was interested in knowing whether it does for the author.

Assuming he/she does suffer this 1300 ms delay "hundreds" of times a day (let's say 200) and for the sake of argument they use their computer 300 days a year and have 20 years of such work ahead of them with this config, then this inefficiency will total 1300 x 200 x 300 x 20 / 1000 / 60 / 60 hours wasted during author's lifetime - some 430 hours.

So well worth the effort to fix!