Fenix 5 Plus does not load maps properly with 19.10 and TopoActive 2022.10

I have a Fenix 5+, upgraded to 19.10, and maps TopoActive Europe 2022.10

The watch does not display correctly the maps during the activity : it's slow, parts are blank, or it's even full blank. And it's draining the battery faster than before.

Everything was working fine with previous firmware and previous map.

What I tried:

- reinstall the maps on a new computer (to force a new download) : no change

- reduce the map details in the activity  setup : slightly better, but still lot of blank displays when running in a city (in Paris for example)

- remove the map "contour" in the activity setup : same as above, still super slow to display the map and partial display