Hey @Marcus I haven't been on here in a while so I thought I would just drop in and see what everyone is working on. I tested your editor and a few of the examples on my machine.
Here is the specs on my machine:
Ubuntu 16.04 LTS
8GB ram
Onboard intel graphics (I burned my graphics card out a week ago)
Intel Core 2 quad Q9650 clocked at 3.00GHZ
And here are the demos I ran:
All the simple demos
shoot_em_up
lunar lander
raycaster maze
gargoyle attack
All the demos I tried ran fine. All the sound was working for the demos that had it. The only problem I encountered was in the help menu both documentation and forum lead to dead links.
Hopefully this helped.