Playing in low elo vs high elo

So I have two accounts, my main at highish elo, diamond last season, and my secondary at low elo, stays at around silver 3. Here are a couple things I am noticing:

• In plat, where my main is now, the close out games a lot quicker. Most games go to the most 30 minutes. In silver a game could last til 40 minutes or longer.

• Because of this, off meta picks can be used in silver. People don't know how to punish it.

• Plat and silver are very alike, people all think they are the shit. I cannot stress this enough. In silver its a bunch of people who got out of bronze and in plat its people who are out of gold. It's the people who aren't dicks that will climb

Those are the main things, so idk I found these things interesting