I played this game with dgvoodoo 2. the image is very nice but the game is not smooth. sometimes are pausing like i stopped it. i changed dgvoodoo 2 settings but nothing has changed. what is wrong?

System specs:

win 10 64 bit
i3 6006u
4 gb ram
r5 m330 gpu
1 tb hdd

dgvoodoo 2 settings
1920x1080 res
16x force anisotropic
16x msaa
1024 mb vram