I currently stake 386.52, I was getting one stake of 1.52+something every two days and yes, I am staking 24/7. Since the 5th of march, nothing moved. And I repeat, This rewards were happening with a network weight of over 1 mil. The past 5 days, the weight was way below (hovering between 700+k - 900+k). Yes, the wallet looks normal. No internet connection drops, no errors or anything... Today I've restarted the wallet to see if something changes.
I think you were very lucky with one stake every two days.
See my Test with different balances here.
The wallet with 500 Moin received 11 stake rewards in 28 days.
(I will update my test in two days with new data because then another month will have passed)