I'd suggest enabling the following vars that are somwhat useful QoL or QoL-like features:
enableNewResearchSorting: true
statisticalBulletConservation: true
As well as "bulletSaving: true" for non-missile kind of craft weapons (whose ammo is loaded as multiples), essentially craft gas cannon, gauss cannon, sonic oscillator and ion cannon. I suppose this is practically most relevant for the sonic oscillator, because the others are rarely used.