Nisam, izgleda da je problem raširen, pre agresivan memory management..
Ali sam malo guglao i čitao po redditu i xda i možeš oprobati par stvari podcrtanih ispod (iako ovaj lik kaže da njemu to nije pomoglo, ali vrijedi probati):
"I have a problem with multitasking.... Processes of all apps turns off right after leaving them. Tried everything, went through all battery settings, developer's settings and such. Tried every option. Multitasking is simply impossible on Mi A2 Lite (Pie 9.0). Apps turns off instantly after I leave them. Optimization for each app is turned off, Adaptable battery turned off, Battery saver turned off, also. Nothing helps; So sad, and it seems there is no solution for this."
Ako imaš MIUI onda probaj ovo:
https://www.reddit.com/r/Xiaomi/comments/7tjuvo/how_to_stop_miuis_aggressive_ram_management/