PoE Hex builds similar to POE 3.20 CoC Ice Spear Deadeye Vs. The Phoenix

So this has been a fun build to put together and I've spent most of my currency this league on it, but I don't feel like the DPS is where I want to be. I'm sitting on 40% CDR and 146% cast speed on my temp chains. If I add the 990% cast speed to bring the PoB cast speed up to the CD value, I'm sitting at 1.8 mill dps. This seems fine for normal mapping, but about 10m short of what I would like to have for bosses.. &x200B; Are there any straight forward upgrades to this build dps? More CDR from boots, or possibly belt? I'm farming sanctum for more relics, but they are just such tras

POB: I've sunk a good chunk of change into my Impending Doom PF and finally was able to beat the pinnacle bosses but not with out a struggle (mostly mechanics and dot's). I want to try and make a push for Ubers but clearly right now I dont have the required DPS but I am stuck on how to get there. I've seen steelmage melt Ubers.. is it only possible with god tier gear? Any help or advice would be appreciated. Thanks!

On ssf standard. Wondering if i should create a build around both of these or drop one. Most people I saw on ninja were only running one or the other. If I run both i am thinking about putting an aura set up in staff for lvl 7 enlighten. With both I hit dot cap rather easily, but I might struggle with defences a bit. I want this to be a bosser. So mainly wondering how i fit in more defence. Main things i can think of is purity watchers eye and progenesis. POB (Just something I threw together quickly, needs a few more things) &x200B;

Looking to find some suggestions on any tech or suggestions to improve my build? I've done pretty much all content comfortably. I have spent a lot of time in PoB trying out various things, but I think I am at the peak of what I can get. Only thing I have left to do is get -% res on wither for belt enchant. Just wondering if anyone has any suggestions on what to improve or where to go from here? Thanks