Khulkhuum
Refugee
I don't think it's not too much. You do need a lot of time to walk through all of those places, but it reminds me of when i tried skyrim. At one point the loop of exploration for me was something like this:
1. Find a new cave/dungeon/fort to explore around the map.
2. Kill everything that is aggressive.
3. Gather loot (what is valuable) and run back to the city to sell or store in a house what is important.
4. If couldn't gather everything, get back there and fetch more items to sell and store.
5. Finish that place and get back to #1.
When i got a companion it went faster, because she could hold some items
Still, i managed to clear quite a lot before i got bored. Here you have rising difficulty, so it will not be the same over time.
1. Find a new cave/dungeon/fort to explore around the map.
2. Kill everything that is aggressive.
3. Gather loot (what is valuable) and run back to the city to sell or store in a house what is important.
4. If couldn't gather everything, get back there and fetch more items to sell and store.
5. Finish that place and get back to #1.
When i got a companion it went faster, because she could hold some items
Still, i managed to clear quite a lot before i got bored. Here you have rising difficulty, so it will not be the same over time.