Rendering tiles very slow

dear cesium team,
i am loading tiles from a local source.
rendering tiles is very slow, when i zoom in or out it takes a time to get tiles for the specific zoom. is this normal? or i am missing something?

What kind of tiles are you loading? Is it 3D Tiles or imagery/terrain tiles? How did you generate this data? What CesiumJS version are you using?

imagery tiles
cesiumJS 1.67
i loaded the tiles with a correct url structure and everything wen fine.
when my vga driver has a WDDM 2.0 the rendering is slow, but with a driver with a WDDM 2.6 for example its very very good.
is there any way i can load the tiles fast with a driver with WDDM 2.0??

It sounds like this issue is specific to your device/the older driver, so I’m not sure if there’s anything that can be done on the CesiumJS side to resolve it.