Unlimited reactions: one single caster with counterspell makes basically impossible to cast any magic at all during a turn.
Meh. Just remove counterspell from the game. Problem solved.
My own personal stance on the rules is...
tl:dr
As I thought and hinted at in my first response. So much for acceptance. Above statement from you Jandk, is like me saying, go find an arpg to play instead, it seems to be more your style. problem solved.