Sounds like you have issues with your Neutrino peers.

Try going to Settings > Embedded > Peers and making sure your ping times are under 200ms by hitting the hourglass icon

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Already found a good guide on it. Thanks for pointing the right direction.

You’re welcome.

This is our worst UX pain. Performance should be better in the next release, and a more trusted but more reliable method to fetch blocks is coming later this year.