Photoshop 2021 on Old CPU

I have issues if I try to run Photoshop 2021 (22.3)

- it crashes on loading images.

- If I go to preferences I get "Could not Complete the General Command because of a program error"
- Same message box on "System Info " command

I have tried re-installing Photoshop 2021
Photoshop 2020 runs OK (21.2.6)

I am running an old computer with:
- Intel i5 2500K processor (Has the required 64 bit support and SSE 4.2)
- The internal HD Graphics 3000 (I understand does not support the required DirectX 12)
- 16GB memory (Plenty of memory)

I will be upgrading my computer at some point, but was not planning on doing so quite yet.

From the Photoshop minimum requirements changes from Photoshop 2020 to Photoshop 2021, I am guessing it is the GPU requirements (DirectX 12) that it is possibly failing on. But if this was the case I would expect it to notice this obvious deficiency and blatantly tell me my system is unsupported.

I am wondering if adding a separate Graphics card will get me going again?

Does anyone out there use a similar old processor but with an external GPU successfully on Photoshop 2021?

I just wanted to find out before going to the trouble of getting a suitable Graphics card to try.

Thanks in Advance,
Mark.