As can be seen from your attached images, it takes time to load your slide with images.
This may cause if your slide includes images of a large size.
So, please check the images again and try reducing their size (Acess the View tab > Resources)
For detailed steps, kindly see this tutorial video: How to resize image and reduce its file size in ActivePresenter
If the issue still persists, kindly send your project with its external data folder named in the PROJECT_FILE_files (if any) to our support email address: support@atomisystems.com.
We’ll further investigate it to give you better assistance.