How can I rotate the player without screwing up movement?

I've got a method that rotates the player, and it rotates the player just fine, but for some reason, it prevents the player from moving properly and causes extreme jittering when movement is attempted.

function module.RotatePlayer(player, rotation)
    local rotatedCFrame = player:GetPrimaryPartCFrame() * CFrame.Angles(math.rad(rotation.x), math.rad(rotation.y), math.rad(rotation.z));
    player:SetPrimaryPartCFrame(rotatedCFrame);
end