軽さランキング
https://www.av-comparatives.org/tests/performance-test-october-2018/

ADVANCED+ ★★★
*1.7 ESET
*1.8 K7
*2.1 Avast, AVG
*3.0 Tencent
*3.2 Vipre
*4.5 BullGuard
*6.2 QuickHeal
*6.4 McAfee
*6.7 Symantec
*7.3 Panda
*8.7 Bitdefender
*8.9 TrendMicro

ADVANCED ★★
11.2 F-Secure
11.4 Avira
11.9 Kaspersky
13.0 Emsisoft

STANDARD ★
25.6 WindowsDefender