This Control Panel allows you to have the frontmost application
utilising more CPU time, therefore running faster. I also have the
1.0J version, which I believe is more recent. I will post it here if
asked (and I can find it!).

> CPU Doubler increases the computer's throughput via a proprietary
> scheduling algorithm. System 7 has a fairly simple scheduling
> algorithm which gives equal time to each process. There is no
> sophisticated load management scheduling that tries to optimize
> system performance by adjusting the amount of time each process
> gets. CPU Doubler adds this feature.
>
> CPU Doubler also lets users customize performance to fit their
> needs. By setting individual process priorities, users can perform
> their own load balancing, finally giving users the ability of "job
> control" found in other multitasking operating systems such as UNIX
> and OS/2. There is even a history feature with which to set
> priorities of non-running applications so that future use will yield
> the desired result.
>
> CPU Doubler also includes with it a free copy of [Cron Manager][1],
> our chronological event management utility, which retails for
> $26.95.

Compatibility
Architecture: 68k PPC

  [1]: http://macintoshgarden.org/apps/cron-manager