Is there a way to disable the IK Manager on playtime without impairing the animation?

We have a lot of moving characters in our game that currently require or use the IK Manager so that it affects our performance in a negative way or at least hinders us in using the full potential of our performance. Even if the amount of characters is low this is not ideal. However, when disabling or even removing the IK Manager entirely the animation gets impaired and the Limb Solvers stop working how they should.

So, to pose the question again after supplying context: Is there a way to disable the IK Manager on playtime without impairing the animation? Or any other way to work around this issue?