i recently watched the speedrun on 2-s and they breezed past the intro, although i am unable to produce the same effect.

any advice?

its hardware locked lol better hardware the faster the stuff goes

More accurately it’s frame rate dependent. The more frames you get the faster you’re able to click through

Yes the text is framerate dependent but just saying that isn't helpful.

In order to get the fast text you need to in the graphics options set "Target Framerate" to "None" and make sure "Vsync" is disabled. This will let the game try to run as fast as it can.

From here you can do a few extra things to try and squeak out a few extra frames if you need to (though if you cant click fast enough then it wont really matter) You can set the Resolution of the game to its lowest possible setting (640x480). You can also set downscaling to its lowest possible value (36P). And lastly make sure no other PSX settings are enabled.

This is just to reduce overdraw as much as possible. These values would also not be allowed in other levels and are only allowed here because this level overrides them for all important parts. And like I said outside of uncapping the framerate its not really important unless you are able to click fast enough.