In my case, I doubt a resistor would help. My Dimmer2 currently report:
large lamp: dimmed to 21%, reporting 17W consumption,
small lamp: dimmed to 53%, reporting 15W consumption.
This is well above the 10W limit, which anyway was only given for the N-less installation. Here, N is connected.
I'd love to attach a digital oscilloscope to record voltages during the flickering - but I have no such equipment, sorry.
BTW,
being located in Germany, my electricity source is 230V/50Hz (± a few %).