I just opened iTerm and started bashing keys on my keyboard randomly and there wasn't any lag. For me, for all intents and purposed it just fast.
Cat a long-ish (10k lines, I know it's not that log but don't have anything longer at hand) and search with highlight and there wasn't any lag (and I'm quite alergic to it).
BUT. I don't have any fancy shell prompt nor ligatures (don't see any point) and there is a warning that enabling said ligatures will impact performance...
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 (?)
I just opened iTerm and started bashing keys on my keyboard randomly and there wasn't any lag. For me, for all intents and purposed it just fast.
Cat a long-ish (10k lines, I know it's not that log but don't have anything longer at hand) and search with highlight and there wasn't any lag (and I'm quite alergic to it).
BUT. I don't have any fancy shell prompt nor ligatures (don't see any point) and there is a warning that enabling said ligatures will impact performance...