Vulkan doesnt work (no pre loading)

[mamadamin8088]

I realized that whenever i switch to Vulkan the Pre loading map, shaders etc... is wrote 0 of 0 completed on the bottom of screen in the lobby. and whenever a new spell casts, my game just freezes for like 1 to 3 seconds(sometimes even more in fights). but its no problem on Dx11 because pre loading does work and completes.

However it may because of my specs (Gen 3 intel core-i5, AMD RX470 8GB, 16GB RAM, 7200RPM HDD)