BCH has the same scaling issues as BTC, even though BCH has slightly bigger blocks. But BCH has fewer users so it hasnt seen its fees go up yet as users compete for preferential inclusion of their transactions into blocks. However, that blockspace ceiling will be hit on the BCH chain just like it was on the BTC chain, in time. Short time.
BCH is a pump and dump scam, like many other altcoins have proven to be, because its devs arent funded by government / university grants and they wont stick around when the project loses its advantage. As soon as people realize that the fee problem BCH was supposed to solve is exactly the same on the BCH chain, and fees start rising on the BCH chain, the owners will dump it and abandon the project.
But BTC will live on and prosper because its not a moneymaking scheme, its an academia funded global experiment with the world's best minds pouring into it at MIT and other leading universities.