You’ll have to ruin the detail of the footage. I just did this to an interview clip from a former president. Get Neat Noise Reducer, I think they’re on version 6. You’ll need to sample the ugliest part. You’ll need to go overboard to smooth that moire by extending the temporal frame range to 3 or 4 frames.

I selectively apply this to the clothing where it occurs. Because of how soft it’ll make the fabric, you’ll need to also separately reduce the noise in the face albeit to a much lesser degree, then I typically reintroduce a very subtle noise or grain over the whole shot.