Yes! I've had the same issue. I take shot after shot against his 83-rated GK and he makes saves like prime Gigi Buffon. Keep in mind I have Pajor, Forlan (Hero), and Alba Redondo (UWCL Primetime). Meanwhile my Courtois (89-rated) is making saves like his gloves are coated in dish soap. The strangest part is that once I'm 2-0 down, my players can finally score a late goal.
It seems like the game is made for wannabe pro gamers. What's the point of grinding if you can just pay to win? Instead of "authentic" and "competitive" mode, they should have made it "casual" and "sweat" mode. It's just not fun. I'm just speed running the trophies right now so I can stop playing.