Your computer may lag when downloading many files, especially when using a download manager, such as Flash Get, IDM, DAP etc.
This happens because your antivirus software is scanning incoming connections your download manger is connected to. Download managers usually download from 10 connections or more, so if you are download 5 files simultaneously, your antivirus software is scanning 50 connection simultaneously for malicious activity causing your computer to lag with high process usage from the anvitivirus software
To solve this problem you can disable your antivirus software, but it is strongly not recommended.
This happens because your antivirus software is scanning incoming connections your download manger is connected to. Download managers usually download from 10 connections or more, so if you are download 5 files simultaneously, your antivirus software is scanning 50 connection simultaneously for malicious activity causing your computer to lag with high process usage from the anvitivirus software
To solve this problem you can disable your antivirus software, but it is strongly not recommended.