I had a flash of inspiration overnight that simplifies the concept of our perspective of time, and the perspective for an entity in another dimension. At least it works for me.
Imagine, in our dimension, a visual concept of time as a spiral like a coil spring. As we perceive moving through time, we travel around the spiral. Now, imagine that spiral being inside a cylinder or tube. Entities from another dimension would perceive time as instantaneous if the tube was their environment because they would not be limited to traveling around the coils as they could instantly visit any coil of the spiral.
In our dimension we are locked into cycles. The daily cycle of day and night, the annual cycle of the seasons, are two that are obvious to us all. Light waves and sound waves are depicted as a sine wave with peaks and troughs but in fact are following a spiral path.
Time could have the same properties - a spiral motion that if viewed from the side would have an apparent up and down motion as well as a towards and away from the viewer motion.
My head is starting to ache now so I’d better have a cuppa

then get back to laying those damn tiles.