Question Windows 11 Efficiency Mode causes higher CPU usage than when it's deactivated ?

[Gamefreaknet]

So a "feature" of Windows 11 (not sure if apparent in Windows 10, probably is) is being able to set certain tasks supposedly to take up less resources by put them on "Efficiency Mode". More often than not however I have noticed apps set with "lower processes" on Efficiency mode (since you cant set the "core host task" on Efficiency mode sub-tasks that core task is controlling/managing - If there is a way to set all sub-tasks on/off Efficiency mode please note how) I have noted that those tasks as opposed to Tasks not on Efficiency Mode actually tend to use Higher CPU usage? Whilst I'm not sure how it tends to act with the memory (if it uses more CPU at the benefit of use less RAM?) that seems to do the opposite of what the "mode" is trying to aim for? Is this a buggy WIP feature Windows are still working on or just well known that doesnt work so well??? And what is it aiming to do? (Lower RAM, Lower CPU, Lower Overall usage???)

Specs:
i7 8750H w UHD630
RTX 2070MQ
32GB RAM 3200mhz (running at 2667mhz Dual Channel)
1x 1TB SATA6 SSD + 1x 2TB M.2. PCIE4.0 (running at PCIE3.0 due to slot) SSD

 

[kerberos_20]

And what is it aiming to do? (Lower RAM, Lower CPU, Lower Overall usage???)

its supposed to put inactive web browser pages to sleep or lower priority on inactive pages (something like QoS)
which browser are you using?

 

[Gamefreaknet]

its supposed to put inactive web browser pages to sleep or lower priority on inactive pages (something like QoS)
which browser are you using?

OperaGX limited to 25% CPU and 4GB RAM (got 32GB - 2x16 on my PC)
[Rarely seems to "adhere" to the CPU limiter though]