Inverse Kinematic Jittering at low FPS

Hello, I’ve been working with inverse kinematics to have my characters hold their weapons in game rather than use traditional baked animations. The problem that I’ve encountered is that when the character’s lower torso position changes (due to a walk animation, etc) it causes the arm IK to jitter like crazy at low fps (60fps default.) However, when I increase the FPS to 240, it has no jitter at all. Does anybody have a fix to this or has anybody else encountered this issue? Thanks in advance.

See video below, look at hands.

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