Coinomi send tx stuck

I was wondering what would happen in case of mempool saturation.

What if some txs take several blocks to be processed and min fees get increased in that time ?

Thanx for your answer.

There is a 60 block period before a fee change is in effect and samples 10 blocks to get the highest fee to be on the safe side.

Ok, thanx. I guess delays could even be increased if needed.