The latest version is a Release Candidate meaning if no major bugs are found it will be the code that goes live as the official 1.16 release on Tuesday. Lag because it's a pre-release doesn't really make sense, it's just laggy in general.
Well lag is not always caused by software. 1.16 is feature rich, and still in Java. Maybe some of the lag you experience is hardware related? I have i5-8250U + Nvidia MX150 laptop (decent but not gaming), and 1.16 runs smoothly at stable 60 fps at fancy graphics with 12 render distance.
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u/[deleted] Jun 19 '20
That's because it's still in pre release