Freezes due to ping jumps, black banners

After the release of the "Beast of Prey Collection Event" I'm seeing small friezes in which my ping jumps sharply by 5-15.  My ISP, after looking at the trace, said that the problem is not in his area of ​​responsibility. I began to notice the black banners of my character. Watching streamers, I also saw this problem in people. Can you just make games normally? Why does a lot of technical errors appear in the game with every update?