Optimize unknown data cluster

[nocturne glade]

This is the most laggy boss I've ever fought on low end device

My game was running like at 1 fps

And I'm also using the lowest graphic

[novel ruin]

Same problem happens to me.

[rich pasture]

Same problem, and also happens to last stage of Newest Border Pact.
It's so laggy.

[rich pasture]

It's similar like this although my phone can't handle along with recording. But frame drop actually happened even though with my phone in prime condition (above 50% battery, decent signal and low temperature).
Unknown Data Cluster phase 1 still absolutely fine, but entering phase 2 it's getting worse and not playable when the boss swinging.

This is usual FPS (Warzone, Norman & PPC)

[unreal shadow]

i encounter this ask well on my android phone

[ornate vessel]

I've had this problem for a couple of months already and i'm playing on the PC client