Following are some challenges for investment with Small capital
1) Returns will be less as you have limited money.
2) It will consume a lot of time to grow funds.
Exactly! you cannot maximize your fund and to get profit regularly unlike if you have a big capital for investment or in trading, for example if you have a small capital and you just bought 2 coins and that coin has a stable price for a couple of months so it will really hard for you to buy other coins because your investment sticks only in that coins.