I suffer from slowndown using GZDOOM 3.5.0. Modern Edition. My PC is old but I still could play using the previous versions without any slowdown.
Here are my specs :
- Operating System: Windows 10 Family 64-bit (10.0, Build 17134) (17134.rs4_release.180410-1804)
- Language: French (Regional Setting: French)
- System Manufacturer: Acer
- System Model: Aspire X1920
- BIOS: Default System BIOS (type: BIOS)
- Processor: Pentium(R) Dual-Core CPU E6700 @ 3.20GHz (2 CPUs), ~3.2GHz
- Memory: 4096MB RAM
- Available OS Memory: 4096MB RAM
- Renderer: Nvidia Geforce 510
- DirectX Version: DirectX 12
The slowdown is slight, I tried to turn off several options in lights, renderer and OpenGL menus but nothing happened until I decreased the scale factor.
I experience no slowndown on Vintage version.
I know this version was created for older hardware but given the fact that I don't actually have OpenGl 2, I thought I should report it.
Sorry for wasting your time, I just wanted to help. Have a nice day.