~ About feeling a difference not,
Imagine you playing one of those games with very high volatility and low hit ratio, events that equalizing your bance or recovering some of your bets is occurring just with those some rare decent wins or hitting bonus rounds,, then you have practically two times less chances to hit good wins.. and you can burst your balance practically two times more quickly!
I'll say from my own experience. I play different slots with various RTP, including Mega Moolah with 88% RTP seeing it like buying lottery ticket, and, with the exception of Mega Moolah, I have never felt the difference. I mean, high volatility slots still providing you with small wins, and the frequency of those wins are often higher than on low volatility slots. Just recently I lost almost 20 bets in a row on a low volatility slot. This never happened to me when I was playing Money Train 2, and I played that slot a lot.