Since the iPad update 13.1 I can’t open articles in the app, the loading prices is slow, and if trying to open an article the screen freezes
We rolled out a new version on Friday to fix some of the bugs introduced in iOS 13. It is in gradual rollout so please uninstall and reinstall the app to make sure you get the update
Your problem is iOS. Everybody was warned NOT to update to iOS 13 and subsequently iOS 13.1 (which was supposed to fix the bugs in v13). Both iterations are horribly buggy. Not much Seeking Alpha can do to repair Apple's error.
Your best bet is to go back to v12.4.1
Customer support service by UserEcho