Yes staking is slow in the wallet. I now use this website https://stakeunited.com/sam12345 I put 10k in at first, and got back around 230 in 24 hours. I just transferred 100k over there now, and still have 300k left in my wallet in case the owners of the website fake a hack, and steal everyones money. If you click the overview tab you will see they have over 1 million USD worth of coins in there staking so a lot of people are using them.