The time limit is fine the way it is, with more time yes you can plan ahead more but the time limit is what makes the game interesting, any more time per turn and I feel like there is too much thinking time 30secs already feels long enough when someone wants to spend the whole limit making their move most players make their moves in less than 10secs so I really don't see the point in changing the the time limit it's only going to make games longer and players delaying moves when they could of made the same decisions alot faster.
It's like a game of live poker some players take like 10mins to make their bet but they could of done that same move in 2mins the only reason they spend so much is because there is no time limit but online poker is different you have like 30secs limit before your hand is auto checked/folded which is plenty of time to make your decision adding more time just delays moves and causes players to fully use their time.
1/2