It’s being worked on. Repetitive shots aren’t as ideal or obvious as a quasi-stable reactor, but a pulsed system will still have its output effectively smoothed in process of heating a thermal jacket or liquid first wall.
Statistics, high speed computing which I’ve assisted with previously, and other techniques are likely to get the rep rate to at least 1hz with the occasional miss.
Certainly ironic that we’re making what feels like a nuclear combustion engine. Old tech, same as the new tech…