I can't run two apps together

[alancsup]

Hi. I'm new at this forum, so I don't know the codes very well. Anyway I'll thank anyone who can help me. I've rooted my Moto g3 it's running lineage 16.0, it's improved a lot but I can't run Pokemon go together with some other app. I know that app consume a lot of resources but I wanted to know if you knew some method to make it work. Thanks!