Both ways are good depending on what you need them for.
Having pivots does hit performance but gives more power, i can get about 3000 snow particles in a 3d world running at over 300fps without pivots but get about 60fps with pivots. The upside is the pivots can collide with stuff and react.
Having pivots does hit performance but gives more power, i can get about 3000 snow particles in a 3d world running at over 300fps without pivots but get about 60fps with pivots. The upside is the pivots can collide with stuff and react.