Why is the driver dealing with `animationRate` at all? The clause above for morph targets doesn't. `animationTime` already includes the rate: https://github.com/virtual-world-framework/vwf/blob/1c62daad39ca9e88c4f911bf1a51ad3148e658fa/support/proxy/vwf.example.com/animation.vwf.yaml#l116.