Problem with v2.4.16 of Page Builder

Hello,
I´ve a problem with the quality of images in a widget, built with Page Builder from the WP Theme infinity. It is implemented on my site irondealz.de (at the bottom – headline “Unsere Partner”).

Due to the bad quality of the images, I´ve tried to set up more elements, but that has no effect, because it does not work. It doesn’t´t matter how many items I configure in the widget settings “The Number of Items”, the widget will display only 4 elements.
Another problem: it took a long time, until the widget is fully loaded. It seems like the re-scaling of the elements took a long time.

Is there a possibility to disable the re-scaling, so the images will be displayed in the untouched quality? If I let the default settings for margin, item quantity and so on, the images are re-scaled to 100×100 and afterwards up-scaled to 200×200. It looks very bad…

Could you help me please?

Thank you and best regards
Andy