You might want to make sure that you have DirectX 3 installed. It might also pay to re-install DirectX 3 even if you do. I have Encore's Pinball Madness 4 compilation which includes Slam Tilt, and it does not appear to have a DirectX redistribution package included (although it could be buried in the cabinet files). There is no prompt concerning DirectX when I install the game, but it is required.

Thx for the help! i have directx 9 installed right now, i will try to find a way to remove it so i can install an older version but i don't think it's easy without reinstalling windows.
Also for the info i have installed these drivers for the soundcard :

1. SC400 Rev 2.0 (Pro16) Windows 95 Driver
Creation date : 27 Oct 1995 #Kiat(Include SingleModeDMA support)
Release date : 27 Oct 1995 #Kiat
Disk Label : S42W95_1027

they work ok including fm and gameport.

No need to remove DirectX 9. Just (re-)install DirectX 3, and Windows and DirectX will install any missing files.
Hopefully you have the DirectX 3 package on your CD-ROM, but if not, any complete FalconFly mirror should have a multitude of DirectX versions.
Here is the FalconFly Archive List:
http://www.falconfly.de/3dfxarchive.htm
And here is one of the DirectX archives:
http://falconfly.vogonswiki.com/directx.html

xmm i installed directx 3 and the lag is the same , i think that this card doesnt have directx audio hardware support drivers 😒

You could run DxDiag and see how your card does in the tests:
http://www.cwdixon.com/support/win98_support/dxdiag.htm

DxDiag says that my card doesnt support hardware buffers , that must be the cause of the lag 😒

Changed the old soundcard with a Sound Blaster Vibra 16 CT4180 and sound works as it should now, no more latency problem, lost the real OPL3 for dos games with the old card but the sb16 sound nice too from what i heard so far , works alright in dos with creative CTCM.