Typing CST Driver Coil is faster than typing Compact Space-Time Driver Coil over & over.
It's like how the military loves their abbreviations & acronyms. It's just faster once you get used to it.
Yes, but if nobody knows what you're talking about before you start abbreviating all over the place using acronyms of your own invention then it's a little bit counter-productive isn't it

Also – copy-paste is a thing.
I'm talking about how fast the average IRL Fighter Jet accelerates to Mach 1.0.
It's a comparative analogy as to "how long it takes" to get to a certain speed.
This might be what you mean but it's not what you say, and the context isn't clear enough to deduce it. I can't tell if you're disagreeing with me, or agreeing with me, or providing some form of parallel commentary.
Having a similar "Performance Enveleope" or "Acceleration Time" to get to 0.25c since the common limit for impulse drive operation during the 24th century is 0.25c. That limit is dictated by the computer time synchronization issues going past 0.25c, not because the Impulse drives can't go faster, they can, but they won't due to the regulations to limit the impulse drive to 0.25c to prevent relavistic effects on the computers internal clocks and the desync issues it causes.
Elsewhere on the very page you cite for "CST driver coil" it talks about "high impulse operations" above 0.75c. Also – you're going to get relativistic effects with any movement. That's how GPS works. At a limit of 0.25c you're still going to see about 3% time dilation.
It's also clear that they mean that prolonged high relativistic speeds will cause ship time becomes desynchronised with what we might call "Federation standard time", rather than the computers becoming desynchronised with each other. When we see the Enterprise having to recalibrate its onboard clocks – in "Cause and Effect" or "Clues", for example – it seems to be no more complex than doing a manual refresh of a computer clock against an internet time server today. The issue comes in that if you are continually recalibrating then timekeeping aboard the ship is going to become very strange indeed over time, and that's going to cause crew issues with things like sleep cycles etc.
That matching of "Acceleration Time" to a IRL vehicle or vessel is what allows for similar performance characteristics seen on screen. It's because the time needed to accelerate is "Similar" to things we see in real life.
Otherwise you get slow & lumbering ships like from the age of sail where things aren't moving as dynamically as it is currently portrayed.
I... literally did this calculation already? And demonstrated using on-screen evidence what accelerations starships are capable of?

How fast a modern jet fighter can accelerate to mach 1 isn't really relevant since it's hugely slower. A starship accelerating to mach 1 at the same acceleration we see the refit Enterprise use in TMP (which it can't technically do if they're not in an atmosphere, but let's run with it for now using the standard speed of sound) would take no more than 0.012 seconds. A starship accelerating to full impulse at the same acceleration as fighter jets are capable of with catapult assist from an aircraft carrier is going to take over three weeks. It's a complete mismatch of scales. Compared to what we know of starships, fighter jets are slow and lumbering.