I wrote a simple slide show type application that loads 32 1920x1080 images, and blends one in after another in a loop. All of the images are pre-loaded into textures at the start of the application.

I have noticed that when trying to render 1 or 2 of the images, the frame rate will drop considerably, It will always be the same images. If I restart the app however, the slow images will be 1 or 2 different ones.

I am running linux on a Core I5, with an integrated intel GPU.

Does anyone have any idea what could be the cause of the slowdown, and if there is a technique to avoid this?

thanks for your time.