I have the US market HP Envy 17, model number 17-cw1087nr with the same CPU and RAM speed as the laptop here. I was surprised at the low Geekbench scores in this review and so decided to test them myself. Right out of the box, the laptop scores 1972/8387 (https://browser.geekbench.com/v6/cpu/9635207) (Single Core, Multi-Core). After resetting Windows (cloud download, keep nothing) + clean boot, it scores 2117/8704 (https://browser.geekbench.com/v6/cpu/9635207). There are even higher scores (https://browser.geekbench.com/search?q=17-cw1xxx) for the same model equipped with the same CPU.
Either something is way off with Notebookcheck's benchmarking or HP are deliberately limiting the performance of German market Envy 17s.