You can at least do this by using the performance CPU governor although there is a fair amount of nuance here in that how it’s implemented depends on the CPU and a few other things. In general, it’s a safe starting point, however.
If armoury crate is a CPU overclocking utility, than that is another matter. There is some CPU overclocking support on Linux, although I’m mostly familiar with AMD CPUs and this support differs by manufacturer. This page isn’t a bad starting point if you use an AMD CPU.