it's known to all that ,sometimes higher version is far more slow than low version
this is a example.
Clear["Global`*"]; Plot[Sin[x], {x, 0, 5}] // AbsoluteTiming on my computer
So is there a way to use low version in high version?
WhyThe reason why I don't use low version directly is that, high version has more functions,which is more convenient.
thx to the link in the comment.I find this.

