Render the mini-map with 1/4 the data.

[davesmith00000]

Or in four sections that make up the total.

Or reduce the map size from: 80*50=4000 to sqrt(1024) = 32*32. Increasing to 64 x 64 and rendering the minimap in four equal quarters could be straightforward...?

(This is the get around the Safari data limit of 1024.)

[davesmith00000]

Removed the minimap!