Hi, lags HL when I start the stream. Only she lags, drawdowns up to 25 fps. What to do?

Only HL? Other games without problems?

only HL. Another game i playing without problem

I have no idea.

Try lower resolution - 800x600, r_dynamic 0, r_decals 1 and set priority for hl.exe - High (Высокий).

You can try NGHL (less lags).

eh I'll try