Lags

[IzNoGoD]

set your rate higher. Sounds like not enough data per second can be pushed through. Also increase cl_maxpackets.

[Lonsofore]

Is it only at map start? Or also "randomly"?
If it's at map start, check the cvars you are setting. This causes lag. Also loops can be causing lags

Randomly and not only at map start. I see lags during the whole game, if people count more than 10-15. I'll check my loops. Do you know something about loops "in numbers"?

set your rate higher. Sounds like not enough data per second can be pushed through. Also increase cl_maxpackets.

Rate 25000 and cl_maxpackets 100 for everyone, so the problem isn't here. Or can this problem be here, but on OS-side?