it is dependent on the number of pending transactions. BCC has only increased the block size to 8Mb, given time and usage, it will go back to being no better. BTC is looking to use other layers to eleviate the issue. Litecoin has recenlty implemented a the lightening network which is another layer, BTC could look at that pending concensus. LIghtening network, while eliviating the speed/fee issue can also bring about other issues however.