I think titled players have advantage because many of them had or have a coach. Let's take Danny Rensch. He had very good coaches. It's different for those who started playing like a hobby with only books.
Speaking about blitz/bullet/classical games. I'm still puzzled about their time control. I think in otb it's like this: bullet - 1 min, blitz - 5 min or 3+1(2?), classical - 2 hours for the first 40 moves, 1 hour for next 30 moves and 30 minutes for the rest. Nowdays classical games tend to have increment as well but why? And i don't understand time control in the internet. Here blitz is from 2 till 10 minutes. In other places 10 minutes can be considered as classical. For me 10 - 15 minutes are rapid. And i don't think 2 minute game can be called blitz, it's more close to bullet.
For FIDE Blitz: any fixed time of 10 minutes or less, or the base time + increment*60 is 10 minutes or less. USCF rules (mentioning since this is a US site) is essenitally the same but the fastest ratable time control here is 5 minutes (base time + incremenet/delay, so 3+2 is = 5) up to and inclusive of 10 minutes.
For FIDE Rapid: fixed time greater than 10 minutes and less than 60 minutes. With increment, base + inc*60 greater than 10 or less than 60. USCF is anything greater than 10 and less than 30 is Quick (USCF's term for Rapid) and anything 31 up to 65 is actually Quick and Regular rated.
From: https://www.fide.com/fide/handbook.html?id=171&view=article under Appendix A and B
The FIDE standard time control is: "90 minutes for the first 40 moves followed by 30 minutes for the rest of the game with an addition of 30 seconds per move starting from move one." From: https://www.fide.com/fide/handbook.html?id=39&view=category
I think titled players have advantage because many of them had or have a coach. Let's take Danny Rensch. He had very good coaches. It's different for those who started playing like a hobby with only books.
Speaking about blitz/bullet/classical games. I'm still puzzled about their time control. I think in otb it's like this: bullet - 1 min, blitz - 5 min or 3+1(2?), classical - 2 hours for the first 40 moves, 1 hour for next 30 moves and 30 minutes for the rest. Nowdays classical games tend to have increment as well but why? And i don't understand time control in the internet. Here blitz is from 2 till 10 minutes. In other places 10 minutes can be considered as classical. For me 10 - 15 minutes are rapid. And i don't think 2 minute game can be called blitz, it's more close to bullet.