Bitcoin has a very large market cap. This makes huge price gains less likely because of the extent of demand needed to push the price up. For the same reason, it also means price drops are likely to be less severe than other cryptos. Holding Bitcoin feels safer than many other coins and its history adds to that security as well. If you want much bigger gains, then you will need to look elsewhere. If you do, it is essential to do your research as other coins will be riskier.