Thanks, Doghouse, just what was needed and exactly in the form preferred!
Aaaannddd... Things are starting to clarify, the main culprit is obvious: Although your hardware looks decent, a powerful processor and a sufficient amount of RAM and an entry level video card, you're sacrificing most of the power to a 32 bit operating system! So despite having a nice 8 GB of RAM, the 32 bit Windows only can use less than half of it. A full clean reinstall is required to change it to 64 bit, on the good side you don't have to buy another license for that. Just download the installation media from
https://www.microsoft.com/en-us/software-download/windows10 and follow the instructions. More advice will be given here if needed. Remember, that will ERASE EVERYTHING so copy all your valuables to another media before upgrading the OS.
Unfortunately upgrading the OS is not the only bottleneck. The processor may also be one, depending whether it's of the type that can only use one core for AH or not. With luck it uses more than one core. On the plus side is the high single core performance and that even with a single core running AH the other three can be used to run other Windows tasks supposing Windows can assign them to other cores than the one that runs AH.
Yet another bottleneck is your video card. Although it's a gamer, it's an entry level gaming card and somewhat dated. Then again, it uses the faster GDDR5 memory which is a very good thing. Another good thing is that your monitor (TV) is only 720p which doesn't put much load on the video card. Those two are actually quite balanced together which should give you quite high refresh rates, a solid 60 fps most of the time with some settings cut down from the default. The texture resolution thing is among them, Environment mapping, shadows and post lighting effects should also be disabled for a smooth performance. Most likely you won't notice much difference.
Conclusion: The worst bottleneck is the 32 bit Windows operating system. Updating that is the first step to take and it's free, it only takes you a day to install, update, find and install all the motherboard drivers and install all your programs not forgetting to copy your files back from the external media. The rest should do unless you're planning to upgrade your monitor to a 1080p or even higher. That would mean upgrading the entire system.
