Extremely slow loading order confirmation page

Hello,

I have done a few monthly testpayments using Vipps on my mobile and found that after payment the order confirmation page use 12-14 sec to load. After payment i am redirected to my domain (in browser addressbar) on a blank page with scrollbar at the bottom and as mentionen it goes atleast 12-14 second before content is loaded.

When i pay using card we also get a 12-14 sec wait, but as the wait now is on dintero server with content loaded it does not harm users experience in the same way as with Vipps where page is blank. When redirect complete the content on our site loads instantly.

Doing the same test on desktop goes better, or in same way as with card on mobile. The wait/delay is on vipps server and when redirect is completed content on our site loads immediately.

I never noticed issues like this on Bambora where i also did my monthly tests.

Brgds
Rune