[toupeira]

Try "journalctl -e" or "journalctl --since today", it seems like by default it will load all available logs which leads to this slugishness.

[perlpimp]

it is slow because log is read written in a block binary format but pager accepts byte granular fseek feature to go forward without loading everything into $PAGER's buffers.

[rakoo]

See ? People complaining before reading TFM. Thank you !