how long does it take zjr new wallet start staking?
The annual stake interest percentage depends on your stake size. Larger wallets/addresses will stake more often.
The priority for staking depends on your weight (volume, coin-age) and difficulty. If your wallets recently has staked still being under PoW/PoS, it may take a while for your stake to get active.
Do wallet need to run non stop or you can run waller 1x week for 24h? Or every 2 weeks for 24h?