Which articulation for the most natural sounding arpeggios


I'm trying to program some arpeggios utilizing both Cello and 2nd Violins, but none of the patches I'm loading create a natural sounding flow. I've tried Legato, staccato and time machine articulations but nothing sounds quite right.

I'm aiming for something similar to Bach's Cello Suite No. 1 but with a slightly livelier tempo, similar to Muse's Exogenesis Part 1.

Any tips or recommendations would be greatly appreciated. Thank you.