ground floor in an old building is the big reason you're seeing so many tbh, so its not entirely out of the ordinary, but roaches are personally where I draw the line (I'm from a climate where they're less common tho). Worth trying to deal with the roaches and whatever's biting you (I still think bedbugs, they're very sneaky fuckers), but yeah if you can't get it to a manageable level on your own its probably just a good reason to move when the lease is up.

Your landlord might call pest control for you, but they might also not, or might try to blame you for the bugs for reporting it, there's just such a wide range of shitbags out there...