ClamAV is deemed as one of the engines that has slow performance as this is due to engine specific design. However, that does not mean this engine is worse or broken because we should take into the consideration for many factors such as detection rate, quality, stability, not only scan performance
To remediate the performance issue, we suggest setting the engine timeout on MD Core for engine level, so ClamAV still works for scanning as usual, but for any files that take so long for scanning, the AV will stop the scanning process.
This article applies to MetaDefender Core v4
This article was last updated on 2021-01-21