Will a program like icache.exe or ice.exe work at disabling the internal cache in a Pentium Pro 200 and what speed would the system be near to if it did?

At the moment I am using icache.exe on a p233 mmx and its working great the system is like a medium speed 486 so early 90s stuff runs well.

The reason I was thinking of switching to a PPro is I have my eye on an atx socket 8 main-board with 4 isa slots and I want to be able to use fastvid as well.

Thanks