Re-volt is almost playeble

Re-Volt is 3D RC car racing game from the beginning of 00’s. I had some success in running odroid version of RVGL on gameshell. There is some info here, but here’s what I did:

sudo apt install libenet7 libdumb1-dev rsync
dpkg -i rvgl-data-odroid_19.1230a-1_all.deb
dpkg -i rvgl-odroid_19.1230a-1+deb9_armhf.deb

Then copied the data found in this link to /home/cpi/.rvgl/ and created menu item to run rvgl_start.

The thing is, it’s playable, but quite laggy. Any ideas how to improve performance of it?