This is the current driver for your GPU (553.09):
https://www.nvidia.com/en-us/drivers/details/232670/Please download and install that with the Custom - Clean Install options.
I've got an HP zBook with an RTX3000 and it works.
I've got an HP zBook with an RTX A4500 and it works.
So I'm sure your A2000 should work fine.
Currently, your Resolve is in the Auto-Detect GPU Processing mode and is selecting OpenCL, so something is certainly wrong with the NVIDIA driver install.
If clean installing the 553.09 driver doesn't help, then you're going to need to DDU uninstall the NVIDIA driver and then run the 553.09 installer again. This is a link describing how to get and use DDU to uninstall GPU drivers. The thread describes removing the Intel GPU driver. Instead of Intel, select NVIDIA:
viewtopic.php?f=21&t=119852&hilit=%2Bddu#p659861