Scalability
If you use a dex like uniswap for transactions on the ether chain then sometimes you have to pay ridiculous fees especially when the network overheats.
Falconswap will be one of the most valuable fee reducing solutions for that kind of issue in 2021.
One of the greatest issues on ethereum is the gas you must pay expecially when the network - again - overheats.
There are some layer two scaling solutions in construction that try to fix that issue in part of the gas price and technical scaling.
One of my favorites is xdai stake.
Greetings,
bitcurrencies