Revolutionary Etude in octaves can be done in waves, so to speak, for each four notes. My speed would be at my best 105, so if he does it at 130, then kudos to him lol. That's pretty intense octaves. If you try doing the 10-12 for a while, you will get good at it.
25-2 would use a lot more thought and work, I think, although I have not played it.