[staplers]

100ms is generally referred to as instantaneous in regards to user experience.

For example: A 10ms video refresh rate would be 100fps.. the average movie is 24fps.

[penagwin]

That depends on what the user did, in video games a 100ms delay would be terrible, however in that situation the user is inputing highly timed inputs and is focused on the output.

But in general for web browsing, 100ms would be unnoticeable yeah.