Random lag spikes for (almost, probably) everyone in a server

[SuperVitu64]

I don't know why is this happening but even with perfect ping, massive lag spikes still occurr. Is this a common ocurrence or something is off with the servers?
BTW i am playing on BlackWonder BR (since it's the closest from where i live to get good connection) with 76ms ping at the time of reporting this problem.

 

[Deleted User 4826]

Random connection problems

Notably, despite several people all around blackwonder experiencing this, I haven't found any post relating to this specific issue I've, and many others, have had for ages that makes the servers completely unplayable for us. Maybe I'm just not looking hard enough, and the fact I haven't posted...

blackwonder.tf