Ah. Whenever you are translating Surfaces, you have to change the filtering type on the pulldown menu. I’ve covered this on the forums previously so here’s a link and some stuff to look at.
If, after this, it still strobes, you need to soften the image. You either get sharp and it stutters, or soft and smooth. And where you end up along that path is up to you.
The only other way to help is to translate everything in whole pixel increments, but, aside from credit rolls, that’s likely not possible given the creative.