GPU at 100 % workload on Galaxy screen!?

I noticed that my GPU runs at max power (99% utilization, 350 Watts power) on the Galaxy Screen, which seems excessive.

Here is my system:

GPU: AMD Radeon RX 7900 XTX (Adrenalin v. 25.8.1)

CPU: AMD Ryzen 7 7800X3D

RAM: 32 GB

OS: Windows 11 latest update (26100.4946)

I tried various driver options (e.g. Radeon chill) but the huge power draw on the Galaxy Screen remains. It drops down to 20 % on "static screens" like the Planet Screen. For what it's worth, the Adrenalin Home screen lists "Galactic Civilizations IV" and "Galciv4" as two separate games.

Any help appreciated!

PS: Humankind only uses 60 % utilization, which seems more reasonable to me.