Is this high CPU usage normal?


Recently did a full scan via the stock Windows Security software for the first time and my CPU usage peaked at nearly 97%. I'm on a 3900x, but I don't think the processor's specs would matter THAT much in this context, provided it would be a fairly modern chip. I was just wondering if high CPU usage, especially to this extent, is normal when doing a full virus scan? The extremely high peak shown below wasn't sustained and these high usage peaks did not occur on the quick scan. I'm on the latest Windows build.

Thanks in advance.