All depends on what is slow? I have never had any Trend Product perform negatively on the endpoint with performance. I use Apex One as a service and it is also fast. So maybe if you are running it locally? Not sure if I can fully answer your question without more details.
I see you say you cannot work and scan at the same time. There are settings that control how much CPU is used during a scan, you need to lower that or upgrade your endpoints.
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