The system must be doing more than previously. At least I find Fiskarsinjoki often lagging in response on Jolla 1. Especially the lock screen is too slow to keep up with the numbers. A restart of the home screen is definitely slower.

According to System Monitor, the CPU load of last night was approximately 12,5% in airplane mode (using Situations). Wifi was on last night. This used to be much lower, I think.