I have the issue that despite hardware acceleration is working Firefox causes a high cpu usage which leads to the CPU is constantly boosting to high frequencies and this to higher power consumption. In about:processes of Firefox I can see that the main process is at CPU usage around 150% or higher and tabs (8 in total usually) that contain live stream video spiking up to 50%. nvtop, intel_gpu_top and LACT all indicate that hardware acceleration is working. btop shows even a CPU usage of the Firefox main process over 175%. The overall CPU usage of the system is at 60%. I couldn’t find any helpful information so far in the internet. Maybe here we can get trace of the cause. The reason is I want to bring down the power consumption. Question is is there an issue or I am facing a (hardware) limitation. I did two traces with Firefox profiler. [https://share.firefox.dev/459bBEL Here] and [https://share.firefox.dev/3URYBxf here] are the results. I can provide additional information and logs if needed.