Very slow Wi-Fi on Ubuntu 24.04.1 LTS

I did a clean install of the latest version of Ubuntu (24.04.1), replacing Windows 11 on my HP EliteBook 845 G10, but after that the Wi-Fi speed of my mobile hotspot has gone down drastically. Before I downloaded files with around 5 MB/s and now the speed barely reaches 1 MB/s. After trying a couple of solutions like for instance turning off the Wi-Fi power management the problem unfortunately persists. Any ideas how to fix this? (I am new to Linux so my competence with the OS is minimal.)

Details:
https://termbin.com/2n4w