PoE Duelist, Cold, Duration builds without Mageblood, Mageblood (185d), Mageblood (195d)

Feel like I hit a brick wall with this build, I got it to be pretty tanky and I can even survive t16 whisped maps and tank through some crazy mobs, but my DPS feels lacking. POB Linked below, looking for suggestions on how to take it farther from here. Have about 30-40 Div liquiid for upgrades, but I feel like itll take more than that to pump the damage up. Getting all charges beyond 11 seems prohibitively expensive. Is this just sort of the nature of this build, am I missing something super obvious? Considering re-rolling at this point for something w poison to clear juiced t16s and maybe

left - RF mid - lightning warp right - WOrb q - VRF w - frost blink e - guard r - ass mark t - banner crafting helmet: 1. buy base with enchant 2. crusader slam 2b. roll until "+1 maximum power charges" is the only influenced affix 3. buy redeemer helmet with "nearby enemies have - 9% to cold resistance" 4. use awakeners orb on redeemer helmet 5. use orb on crusader helmet 6. craft suppress

hi i made this pob: u think good maybe? need chill so wanted to play cold dot no need skitterboob prob ~1m effective dps in feared