Malware actually includes virus; so anti-malware should cover the features of anti-virus. Because malware covers much wider range, such as spyware and adware, it is more complex in logic and longer in running. And the critical challenge is that many malware types, like spyware and adware, are released in very high rates. It forces anti-malware to update every day. Thus malware’s performance is much lower than simply anti-virus. If your device is old or not in high end, the whole system may be brought to slow down.
So anti-malware or anti-virus basically relies on your device’s quality and performance. To get better protection, you have to run anti-malware apps. It means you need a better device.
By the nature of Android, the pure virus risk is relatively low because copying a program itself can hardly take place under Android architecture. So if you run into a security issue on Android device, it is probably involved with spyware, adware, and other malware. In Android security app market, protection usually extends to anti-malware. All popular products at least include basic anti-malware features, like anti-spyware and anti-adware.