On a slower machine, 100ms latency is achievable, which becomes perceptible (not yet annoying). Output speed can be visibility sluggish if you add too much highlighting and stuff.
I haven't touched iTerm for several years; maybe the modern versions are intrinsically faster, and modern hardware is definitely much.faster, so this could have become imperceptible.
Hmm... there was a time lime 3-4 years ago where there was some slowdown (but I was on beta) but it was fixed.
Nowadays I'm on MBP M1 (so already "older-ish" machine) and it works fine. I definitely notice latency when I'm connecting to a machine with ping over ~70ms so I assume that if I don't notice any delay then latency is low (?)
On a slower machine, 100ms latency is achievable, which becomes perceptible (not yet annoying). Output speed can be visibility sluggish if you add too much highlighting and stuff.
I haven't touched iTerm for several years; maybe the modern versions are intrinsically faster, and modern hardware is definitely much.faster, so this could have become imperceptible.