That... is weird. Yes, pre-2.93 Blender's raw mesh editing performance left a lot to be desired. It is one of the main common complaints of Blender users, including myself.
Release 2.8 actually introduced edit mode performance regressions compared to the older 2.79 releases. While navigating the viewport was no longer an issue (it was in 2.79 with heavy meshes in edit mode) 2.8 up till 2.92 performed WORSE than in this regard.
2.93 performs more or less on par with Cinema R23/S24 in my testing. Better, actually, because Cinema completely chokes on transforming a 2 million scanned mesh object with all faces selected, while Blender chugs along nicely. Not fast, mind, but still workable.
Anyway, release V3 is by far more performant. The developers had a Summer sprint focusing on improving raw mesh edit mode performance, and it really paid off. I could not believe how much this improved within only a month or two. Overall a performance boost of 10-18 times compared to v2.79.
In my testing Blender V3 alpha is about on par with Houdini (little bit slower with smaller selections, faster with larger selection sets), faster than Maya, and much faster than Cinema4D 23/24.
The king remains 3DS Max, however. It kills all the contenders.
PS in sculpt mode Blender is as smooth as Max in transforming heavy selection sets. Cinema4D can't compare with Blender's sculpting performance, so not much help here either.
When Blender v3 is released, and unless the upcoming Cinema4D R25 improves mesh editing performance dramatically, my tests so far indicate rankings of raw mesh editing performance as follows:
3DS Max (by a wide margin)
Houdini (smaller or bigger margin over R3 Blender depending on selection set size)
Blender R3
Maya (small margin over 5 and 6)
Blender 2.93
Cinema 4D
Blender 2.8x - 2.92
LightWave (by a wide margin)
Keep in mind I tested pure mesh editing performance only. No sub-d modifiers, or other functionality. Blender's optimizations are also dependent on multi-threading. The more cores, the better.
[all apps tested on the same machine, AMD3900, 64GB, GTX1080)