iphone “photos” library TRANSFER to cloud FILE FOLDER……SLOW

iphone library TRANSFER “photos” to icloud FILE FOLDER……sometimes quick transfer BUT mostly get stuck with the “spinning wheel”

I’m in Europe, making iPHone pics, trying not to over load my iphone library.

Transferring images daily to cloud “FILE” folder.

Digging for answers to help these transfer on demand.

I don’t know if it’s spotty WiFi , maybe the city I’m in doesn’t have full WiFi ……I have expectations this will work as well in Germany as in USA???

HELP 🤔