So I dont know if I have a unique issue with Opera or anything but I do want to figure out the answer or even know if I have a right to complain about any of this.
Even with the "many amazing features" Opera has on-deck to limit ram, network, and cpu usage and whatnot I still easily have this browser chugging along in the background taking up more processing power with an average of 7 tabs open while not being in-use. If it was just that I'd assume you guys would have an easy fix and a bajillion alternative solutions to figure this out with me, but even after that performance and resource consumption issue I have another which combined with that becomes an even bigger issue.
When I run or use Opera it keeps and runs a bunch more executables/tabs than what's necessary at the time. 
This image right here is what I'm talking about. I have ONE tab open right now and yet opera needs 20 or more so tabs or executables open to keep that one tab running (I don't know the specific term so I will reference it as tab or executable).
I am not looking to have someone justify why I have this many executables open because it's literally indefensible when even a few are over a hundred MB's for only one tab, now imagine my typical 4-7 tabs open history and it all starts to track a little more that this becomes an even bigger exponential issue per tab opened. I don't need to know how or why, I just want it to stop so I can enjoy my sparing time on the computer without thinking I should use my computer as a microwave instead of an actual entertainment system or work device.
This is only two tabs open in Opera.
To the normal human beings should I just switch browsers, and to the devs/support staff why and what am I supposed to do.