Slow board with lots of swimlanes/lists about wekan

[mfilser]

@GuillaumeV-cemea
In total with the latest version 7.17 one board loads within 2 seconds and the other one takes 11 seconds, right?

[GuillaumeV-cemea]

@mfilser Yes, exactly !

[mfilser]

I see.The one board with 2s has 4 swimlane and the 11s board 22 swimlanes?

[GuillaumeV-cemea]

Yes ! I did some more experiments by creating a new instance of wekan (with the same docker parameters), version 6.09 and importing my board. The speed is actually not much slower (I'm at around 10-12sec too), however it "feels" slower because in v7.17, it "halfs load" a board where the lists are very narrow, you already see the cards but you cannot do anything.

• Removing all archives get me down to 14 swimlanes, 18 lists, 376 cards (there is also 22 labels on the board, I forgot about this). It's a bit faster (9sec instead of 11 sec)
• Removing all labels has no effect on load speed
• Removing (archiving + removing from archive) to get to 5 swimlanes gives a noticeable speed boost (down to 5 seconds to load the board)
• Removing (archiving + removing from archive) to get to 6 lists gives the same speed boost (5 seconds to load the board)
• 5 swimlanes + 6 lists is around 3.5 seconds to load

It does seems it's linked with the number of swimlanes and list, and there is no real difference from 6.09 to 7.17 (I did the tests on both)