Yes, but this is because decentralized exchanges have small trading volumes. if there are large volumes there, it will be possible to trade more.
I also think that there are few traders on decentralized exchanges for two reasons: firstly, there is no liquidity, and secondly, they are really inconvenient.
The liquidity of the exchange depends on the number of traders. The more people trading on the stock exchange, the greater the volume of trading and the more liquidity of the exchange.