Ive mixed 2x2 sticks of 6000MT ram and am getting 3200mhz, advice?

[UEX]

You know once upon a time i was an expert in these things alas these days im so out of the loop its not funny.

I have 2x sticks of corsair vengence 6000MT ram and i just picked up 2 more from a guy selling locally, what i didnt check was the fine print!

The new set is XMP and the original is EXPO (im on a 7800X3D)
Old chips are SK Hynix new ones are Micron.

Now my question is, im not after the crazy fastest performance of all time, i play some games, i have a 4070ti, but im an old man.
1)is this speed THAT bad?
2)Can i juice it without expo/xmp without spending my life in the bios?
3)is the best option to get 2x32Gb sticks and just sell these 4 on...

Opinions?

 

[UEX]

Northbridge AMD Ryzen SOC rev. 00
Southbridge AMD X670 rev. 51
Bus Specification PCI-Express 5.0 (32.0 GT/s)
Graphic Interface PCI-Express 4.0
PCI-E Link Width x16 (max 16x)
PCI-E Link Speed 16.0 GT/s (max 16.0 GT/s)
Memory Type DDR5
Memory Size 64 GBytes
Channels 2 x 32-bit
Memory Frequency 1794.5 MHz (1:18)
Memory Max Frequency 2800.0 MHz
CAS# latency (CL) 30.0
RAS# to CAS# delay (tRCD) 30
RAS# Precharge (tRP) 30
Cycle Time (tRAS) 58
Bank Cycle Time (tRC) 88
Uncore Frequency 1796.3 MHz