pull down to refresh

if blocks are taking much longer than 10 minutes to be found and the mempool is growing drastically.
That is not bitcoin's design.
Bitcoin's design is to, over a long period of time, have the average ~10 minutes per block. A block taking an hour can be a daily occurrence. You can't say a system has failed to perform when it performs as it was designed. You can say the design is a failure, but that's a different argument.