Looking at the markup it seems every "object" is redefined upon use. Like every mine has its own geometry defined over and over. I think performance could be improved if they relied more on:

https://developer.mozilla.org/en-US/docs/Web/SVG/Element/use

so that shapes can be reused. Its just a guess so, but I think its a good one.

I second this. Just created two 2p player games and named them "MAX-200-ELO-N.. where N was a number). This wasnt obvious enough for "Akiyama1103" or "theyellow" who neglect the chat function and arent reacting to me cancelling the game. Seriously, I find limited joy in playing someone I have very small chance beating.

When I'm looking for a game to join I click in on each of the available ones to see what parameters are used. I skip those without faction auction and players with 2x the elo of mine. Also prefer balanced map over rotation. But the process is a bit tedious as I cannot work the list top down but instead need to remember the names of games I looked at.

Even better would be to expand above properties when clicking the game so you dont need to click, watch, go back, pick next item. But this last would just be a bonus.

+1 Great western trail
+1 On mars

I prefer to play with opponents of a similar level as myself. If I end up against a 300 elo player when I'm 130, chances are I'm gonna be outplayed. I guess many agree with me that tight games are the best - when its down to the 0-5 points in the end. Would be great if you could just set a min/max range for joining a game. Or a predefined range(s) around your own.

Make an actual realtime option where you need to struggle to meet the clock. 1h + 5m can be REAL slow at times and still both players end game with 1h left. 30m + 3m or something like that?