Casts per second info ignores less cast speed

I play with Arc + Spell Totem Support. I noticed that path of building (POB) shows I have 2.09 Cast Rate, while in-game info shows I have 2.99. Spell Totem Support applies 30% less cast speed and 2.99 * 0.7 = 2.09. I simplified computations by taking off my items (except one) and other gems. And I faced the same mismatch. With Arc I have 1.64 CPS in both game and POB, but with Arc + Spell Totem Support I have 1.39 in POB and 1.98 in game (1.98 * 0.7 = 1.39).

Notice that I have some tree nodes which affect my cast speed, totems cast speed etc.

Is it a known problem that in-game computations are sometimes incorrect and I should always trust POB or maybe there is something in my tree that POB doesn't take into account?

Screenshots:
Spoiler




Last edited by shedelokkk#6835 on Feb 27, 2021, 12:38:40 PM
Last bumped on Feb 27, 2021, 10:11:27 AM
GGG rounds down.
~ Please separate the PoE1 and PoE2 forums.
So just because of rounding it shows 30% higher numbers?

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