Using a fast RAM is the only obvious choice here. What yiu are saying is very logical as well as useful but getting it done in the real world does not seem to be that easy. Use something like a CPU board or a Zorro 3 and see if that works. Still the issue is that it may take some time to load or decode so it still isn’t that easy to achieve. I hope you come up with some mastermind for this!
Business Process Automation