@Diya.3rif Need to use reources and set maximum succes number (recomended).
If you work in one thread and use loop(not recomended), you can unset Reuse recources.
As already stated, 2000 http client threads. 2000 browser threads would be quite an intensive operation to say the least... You would need a very powerful vps with lots of RAM, but even then I'm not sure BAS would handle it without crashing.