Exactly hehe. That's just the way it is, bigger wallets will stake more, in linear proportion to their balance. If you want to stake more, you have to get more coins. People feel like they're having a lot of coins already, but it's an illusion because of the large coin supply. That's also why there is a graphical representation of your staking weight on the "Generate ESP" tab.
so the best soultion is to buy ESP at poswallet as currently POSW a bit DUMPING and than HOLD and then sell for POSW (in few days) when it goes back to 20k satoshi again (POSW not ESP) .... but if you can get ESP to 20k sat I'll give you 10 million ESP (valid only for one month from Today )