I will indeed test, as I changed my graphics card last night and it didn't change the lag in PinballX.
My hard drive is an SSD, and my RAM is not saturated. My processor may be a bit weak, but I can't change that... I still overclocked it last night to overcome all these problems, but it didn't change anything; the system still lags as much with active Wheels (APNG causes a lot of slowdown), and the overclocking had no improvement.
I've used all the options provided to me in this ticket, and the one that will inevitably work, which involves reducing the quality of my media, does not suit me
My tables run perfectly in 4K with full graphic options in Visual Pinball. The only solution I have now is to change the frontend because it seems there is an optimization problem of resources in PinballX with my configuration, which I regret
I will keep you informed when I have found the solution for my PC, whether on the hardware or software side, perhaps it will help other people