I'm sorry, but I believe there is no difference whatsoever in gamespeed between these two. The difference is time perception.
The difference in time perception, quite simply, is caused by the game resolution. The time a tank takes to traverse the screen is obviously a lot longer on higher resolutions, and I noticed right away that the first video you linked to has the person playing in a higher resolution (as seen by the fact there are more icon slots in the sidebar). These games don't scale; higher resolution simply means you see more terrain.
In a similar case, the default game speed of C&C95 seems horribly slow, but in reality, players don't take into account that compared to the original DOS version's 320x200 resolution, the viewport is four times as large in the Win95 version of the game (and even larger in the 1024x768 version of the unofficial v1.06 patch). You have much more overview, much better reaction time, and heck, on higher resolution, you have barely any need to still build a radar center, since your screen shows practically the entire map anyway, making the minimap useless.
So, yeah... you want to make it more fast-paced? Seems odd, but, simply play on lower resolution, and get the original more challenging restrictions the game was designed for 🙂
