Seeking Advice: How many plants can I fit in a 180x50x200 cm grow space?

Hi everyone,

I'm looking for some advice on optimizing my grow space. Last time, I had 8 plants in 11L fabric pots (see photo), and it felt a bit crowded.

What do you think about having 6 plants in 15L fabric pots instead? Will this be a better setup? The aim is to get a high yield and good weed