Is Snapdragon 675 not good enough for GoW

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I get a new prone(Redmi Note 7 Pro)with Snapdragon 675 and Adreno 612 but both gow games barely go above 10fps at the title screen and jump to 30 and above when I disable buffered rendering

I am using the latest beta of ppsspp and vulkan("disable shower effects" don't do much)
It's like I am playing the game like I play it for the first time on ppsspp way back while I was till on Pentium 4.

Edit:It was the rendering resolution
Setting it to Auto(1:1) is like setting it to 5x(the phone native resolution is 2130x1080)
But still,is it really not good enough?

GoW2 for PS2 while using an emulator that first emulate x86 and then emulate the PS2(which requires much more power),seems to work fine
https://www.youtube.com/watch?v=7uu9jCYOV20