Labels for fastest/slowest benchmarks are reversed

[nickmccurdy]

Describe the bug

The fastest benchmark is slowest, and the slowest benchmark is fastest.

Reproduction

base.bench.ts

System Info

System:
    OS: macOS 12.5.1
    CPU: (4) x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
    Memory: 278.89 MB / 8.00 GB
    Shell: 3.5.1 - /usr/local/bin/fish
  Binaries:
    Node: 18.8.0 - /usr/local/bin/node
    npm: 8.19.1 - /usr/local/bin/npm
    Watchman: 2022.09.05.00 - /usr/local/bin/watchman
  npmPackages:
    vite: ^3.0.9 => 3.0.9 
    vitest: workspace:* => 0.23.1

Used Package Manager

pnpm

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