The kind of sticky answer here is "yes and no." Ultimately there may be hardware differences that improve throughput or request handling on the adapter, but more likely than not the real "secret sauce"
Before I begin my response, I wanted to apologize for the delay in getting back to you. Also it seems apt to point out: AllExperts is not a forum, or an otherwise public venue - there are no "guys" or
Yes. If your computer is running slow you may want to look into system tweaks. Go to www.blackviper.com. and check out his Win10 system tweaks. It certainly would not hurt to increase the RAM to the maximum
I will need more information about your system in order to provide more directed answers. That said, conventionally speaking onboard graphics will be automatically disabled when a discrete card is added
Sounds like the LCD panel is damaged, but without a picture or hands-on with the machine it's impossible to say that with certainty. If that is the case, the only "fix" is full replacement of the panel