To those who haven’t read the LN/WB versions here’s a little tip:
It's not that this world the magic level is underpowered, rather it is this country magic that it's underpowered
This world nation magic/technology level can be measured like this:
Tier 1: Pre-WW1/WW1 level
Tier 2: Napoleonic wars era level
Tier 3: Early to late middle age level (early- no cannons/late- cannons)