In my phone automatically unwanted apps install every day i remove those apps and next day automatically install againI uninstalled Samsung store app update and force stop it, but it doesn't workWhat should i do?

When will next update will come for Samsung galaxy j8I am waiting for a new changes and enhance performance.

After android pie update in j8 the battery backup is not good andNetwork speed and signal comes very lowSamsung solve this problemThe network is so irritating me