That would also be less efficient for general use in terms of power-usage and noise since it wouldn't be able to clock down automatically when you don't need it. The other option (if your motherboard allows it) is to diable the turbo and rather manually overlock to the same level as the turbo would go to - but this is problematic as it would require a premium CPU with unlocked multipliers (generally only very expensive top-end CPUs). I'd advice you to google 'intel turbo manual control' or something like that and see if there is perhaps some aplication that would allow you to do that. Unfortunately I don't know if that is possible to do (manually force turbo to be on regardless of what the CPU thinks about it being required). It would therefore be beneficial if you could force the turbo-mode on. If the game only manages to use half the CPU resources due to threading limitations then a +25% increase in speed (for example) will still result in +25% more CPU speed for in-game use.

Of course it would still help if it did because regardless of how bad the threading optimization is - if the CPU simply runs faster then the game will run faster. That said - because the problem with PS2 currently is that it just isn't able to fully use the CPU resources (probably due to unoptimized threading stuff) it might just be that the CPU simply dosn't recognize the need for more speed because there is plenty of spare cycles left on the cores - and this might be why it doesn't kick in. It basically just kicks in anytime the CPU load gets close to maxing out. Hmm, this is a feature of the intel CPUs and should work on a hardware-level so it should be completely independent of any support for it in the software.

How to enable turbo boost i7 3610qm