Feedback on testnet-4 (Test Staking)

The UI is seamless and is running smoothly but on Staking is somehow it always failed most of the time and it sucks the feeling of being FOMO but you can’t even stake no matter how much you tried its aweful there is a sense of disgust, scability is always the issue on most blockchains but yeah this is a testnet I know you guys can improve the congestion on the mainnet because it is not proper to deliver product on mainnet that is not scaled.