I did the TImage thing yesterday and and set a GPS simulator to run overnight. I was pleased to find my vehicle icon 7 hours later, having travelled from Niagara, Ontario to the Middle of the Atlantic Ocean and the system was very much responsive. Redrawing was faster too, and I now have the options to put whatever I want on the canvas.

I still have a mountain of issues to address but for now I may be seeing a little spark of light glimmering at the end of the tunnel

I will try your suggestion of the transparent form over the weekend.

Thank you for your suggestions.