What is the best way to export from Dragonframe?

Beginner here, I’m making a stop motion film and have so far exported all frames as TIFF’s. They are however huge and I don’t have space to work with them, is exporting as Prores 422 HQ from Dragonframe also acceptable? Or should I get an SSD?

It will first go online which doesn’t need insane quality but I am planning to also send it in to festivals, for which im not sure if I will be hitting the mark quality wise if im not exporting as a high quality image sequence?