The blog post was mainly written about GUI toolkits, if your application was freezing for 78 seconds waiting for a screen redraw you might be willing to settle for uglier syntax.
78 seconds was the compile time. The runtimes were almost identical: 0.45 seconds to run the entire test suite in the fastest case vs 1.3 in the slowest.
I'm not going to care about the difference just because "omg one number is 3x another number!?!"
Again, if you have a reason the speed matters, then it matters. The specific numbers here are not relevant to my argument, which boils down to: being "slow", in and of itself, is meaningless.
All up the article starts with reasonable discussion about how different solutions can have more than 6 orders of magnitude time difference, then it segues irrelevantly to a complaint about electron.