Phone lags after about 30 mins and I need to reboot it.

[Android Central Question]

Using an Allview X2 Soul Style Plus, not rooted. I think it's some virus that is causing this specific problem, so everytime I boot my phone up it runs well for about 30 mins and then lags so badly and crashes my applications. If I try to operate it it will reboot itself but Android will optimise my applications every time... So I reboot it myself when this thing happens to skip that long process. Is there any fix to this thing? Any antivirus looks like it won't detect a virus that deployed itself as a system app. I tried factory resetting it multiple times and this is always happening. Any help? Thanks in advance!

 

[jasonandrews25788]

I think there's an app that runs in the background.