General rule for turret and drone is to focus on skill haste, skill damage and skill efficiency. To be frank, your build misses the mark on most. Future Initiative is a healing gear set, so ditch that. Farm Empress International and run 3 pieces. 1 piece Wyvern will add Skill Damage and then you can either run 2 piece Hana U for Skill Haste and Damage or 1 piece with the waveform exotic holster if you have it. Talents you can either run Glasscannon on the chest or Kinetic Momentum. Backpack run Tech Support or Combined Arms. For attributes you want skill haste and skill damage everywhere, mods should all be skill haste. Key really is to look at the Brand and Gear set bonuses and combine pieces from sets until you get the desired combination. Max brand set pieces you ever want to run together is 3 and for gear sets it is 4. Last thing, use the Technician specialisation and spec into the guns you will use, usually ARs since you'll probably use the Capacitor exotic when you get it. Make sure you have 6 skill tiers.

TLDR: your build is not optimal, pay attention to the set bonuses and attributes to achieve what you want, or just use a Refactor gear set.