I agree with the above, SSS always adds to the rendering time because it is quite a complex thing to calculate - regardless of the renderer you are using. So if possible toning that down could help you.
For animations what I sometimes do, and only in situations where I really just need the fastest possible output, I lower the MSI to 1. This will clamp the max ray intensity but it might reduce a lot of the noise you get from it. The downsides are somewhat obvious, your GI, your glass, your reflections and all that will be affected - hence why we don't really often recommend lowering this parameter.
Still, even if the glass will look dimmer and you'll loose out on some of the "realism" that you get by not clamping things that much it might be totally ok for the scene you're working on here - and it might help lower those render times.
Other things would be trying to fool around with the GI vs AA balance + lights sample multiplier.