Seeking Guidance for Hierophant Totem Lightning Tendrils Build - Need Advice on Optimization

I've been diving deep into the world of Path of Exile with my own take on a Hierophant Totem build using Lightning Tendrils, drawing inspiration from the formidable Tatiantel2. Currently, I find myself at Red Maps, striving to complete my Atlas and fine-tuning my farming strategy. However, I believe there's room for improvement in my build, and I'm reaching out to the community for some guidance.

The focus is of my build is on ramping up cast speed and crit multi for Lightning Tendrils Damage, and spell suppression and mana since my main defensive layer is "MoM" and spell suppression. I just need one more charm slot for capping spell suppresion, but i am struggling to find the king of the mists stronghold.

As of now, I'm in need of direction to enhance my build further. I've been working towards optimizing my damage output and survivability. I should mention that i'm utilizing the "Hits have 25% chance to treat Enemy Monster Elemental Resistance values as inverted" mastery, that's why i'm not applying exposure.

I'm feeling rather lost about my flasks, since the last time i upgraded them was at the end of the campaign.

How the heck do I figure out my Lightning Tendrils damage in Path of Building? Strong pulses hitting 8 million DPS, and the regular ones around 1.2 million DPS. Is that good? How can I make it even better?

I appreciate any insights, suggestions, or experiences you can share. The Path of Exile community has always been a source of invaluable knowledge, and I look forward to your input to elevate my Lightning Tendrils Hierophant Totem build.

POB: https://pobb.in/XpzE_KgjezkM (pob is somewhat inflated since it is configured to stronger pulses from lightning tendrils and 65% shock, which i don't always have on, but will become more common when i increase my dmg and my mana).