Cool laptop CPU better?

My CPU is always 90 degrees although it is only 40% leased out in Battlefield

90 degrees is an absolutely normal temperature for a CPU ^^

In the case of the picture, over 80 degrees are extremely bad for the laptop

The picture is not called dubious for nothing.

Absolutely normal temperature

Not at all - especially not with an occupancy rate of only 40%.

With Battlefield, I kind of doubt the CPU will stay cool.
However, it might also be good to know which CPU it is and what kind of Battlefield it is.
However, I just assumed from myself that it was a newer game and therefore needed more power.
And a utilization of 40% may just be a display error.

It is not that unusual that the CPU can reach 90 ° C under load, especially when the device is older (the cooling system is covered in dust, the thermal compound is slowly becoming too old). With so little load that is kind of unusual. Would recommend to you to clean / have the cooling cleaned and (you should be able to do that, however, is no tinkering as with the PC) replace the WLP.

Btw… What kind of device is that?

Dell G3 and there I have to do nothing with heat paste the thing is only 2 months old

Then you should possibly get in touch with their support. Still, something doesn't seem quite right to me. Years ago there was a series in which no / bad thermal pads were installed between the graphics chip and the cooling system.

I have my HP omen that only gets 81 ° C warm at full capacity…