optimal resolution by oversizing

How about friends I came here for the following I have a 23-inch TV brand siragon whose optimal resolution according to the manufacturer is 1360x768 HD and when connecting it to my pc in which I have an amd rx470 via hdmi it oversizes the desktop as you can see in the image in amd crisom the scaling option is activated but I use the equipment to play and that subtracts me fps the tv does not have an osd panel to fix the image it only has two modes 16.9 and 4.3 some idea



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note

I have windows 10 updated to date
amd drivers also the latest
I already did...