Two-character SIMD filtering improved performance significantly:
    ClickBench query Q20 sped up by 35%
    Other queries which perform substring matching saw an overall improvement of ~10%
    The geometric mean of all queries improved by 4.1%

And I also wonder if this is (partly) an artifact of more laser-focused utilization of a CPU core ALU and memory subsystem. E.g. crunching more work into a single or pair of instructions are now leaving more space for other unrelated instructions to be retired.