I deleted my block chain and I'm currently syncing again. Just as I did last time, I noticed that from a certain point, my CPU usage raises to almost 100% and stays so for much longer than the usual peaks before this.
I think it's around the last 5000 blocks.
It also sometimes just stops, I don't know if that is for saving resources or something else, but sometimes it just stops (both CPU and network traffic go to nearly nothing) and almost no new blocks are added.
Is there a reason for this different behavior while syncing the last 5000 blocks?