Go here to HP Support and update all the latest Driver for your laptop especially the BIOS (01/15/2019) and HP VGA Graphics driver and see if it works correctly. HP Notebook - 15-db0176ur - Driver Downloads | HP® Customer Support .
There are no AMD specific VGA Driver for your APU thus you must install HP VGA Driver.
IF you have a earlier BIOS version than 01/2019 then I strongly suggest you update. This might fix your APU speed issue.
NOTE: How to update your Laptop VGA Drivers: Laptop graphics update...How to and how to make your laptop Switchable, if applicable: Configuring Laptop Switchable Graphics on a Windows® Based System | AMD
