Yes I know, but 6 times slower is pretty bad, so when someone presents the modern way, he should probably include a warning, that modern not necesarily means be

Yes I know, but 6 times slower is pretty bad, so when someone presents the modern way, he should probably include a warning, that modern not necesarily means better. Because those who used the old way before, know the limits and worked around them. So why should I switch? I wasted time trying it out (not now, when structuredClone came out). Because my assumption was, it should be faster than the JSON abuse. But it is not, it just has more features.