THIS WOULD BE ALL FINE AND GOOD IF THE MOBS WE'RE DANGEROUS!!

But they're not, ever dangerous. I see what the intent is but it's NOT happening the way you planned it guys. The open world has ONLY trash mobs of varying hp stats about and killing them is NOT hard at all not even remotely so.
If you want us to be terrified of the effect slow slapped on us then do something about it make those mobs 10 times harder.

Right now this status effect is only even noticed because it makes traveling between areas a real pain when it happens.

No once in this entire game have I or anyone else ever even noticed the slow effect being applied on us during battle because the easiness of these mobs makes that completely irrelevant status effect to deal with.