Hallo guyroch, hello forum,It probably is, but it's not the combo of Windows Game Mode + the v-sync on the card setting because both are disabled and it is still slow moving the cursor over the image. System is an AMD 1920x threadripper + Radeon RX 570 video card + ASRock x399 motherboard. Windows 10 Pro.
I have to agree. My Win10 machine (PI 1.8.8-5) has a NVIDIA (GeForce GTX 750 Ti DriverVersion 432.00) card and I am also suffering from a small but disturbing lag. Disabling game mode and disabling v-sync as discribed does not fix it.
My Linux Workstation with PI 1.8.8-4 does not have this lag.
System: Host: shark Kernel: 4.15.0-96-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 Desktop: Cinnamon 4.2.4 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Graphics: Device-1: NVIDIA GP107 [GeForce GTX 1050] vendor: Gigabyte driver: nvidia v: 390.116 bus ID: 01:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia unloaded: fbdev,modesetting,nouveau,vesa resolution: 3840x1600~60Hz OpenGL: renderer: GeForce GTX 1050/PCIe/SSE2 v: 4.6.0 NVIDIA 390.116 direct render: Yes