How to add VST instrument to a imported midi guitar pro file track on Cubase 12?

I have imported a midi guitar pro file into Cubase, and i want to add vst EZ drummer to drums track. how the hell is that possible?
why is that so complicated? Can anyone help me please to solve such ridiculous issue?

what i did is i add a new track and load the EZ Drummer and tried to copy the midi file into EZ Drummer track but the tempo is ruined and its not synchronized.
i seek help please.

in first pic you can see exactly how everything look like right after i import the guitar pro midi file into Cubase.