You clearly have no idea what you're talking about re: concurrency. If mentioning cores repeatedly (and summing their clock rates) wasn't enough of a giveaway, proposing Hyperthreading in userspace is just hilarious.
The problem with flash is not that it's single-threaded -- it's because NSAPI plugins run in (and block) the main() thread!
The problem with flash is not that it's single-threaded -- it's because NSAPI plugins run in (and block) the main() thread!