[Solved]Why is OpenGL slower now?

[rgabriel15]

I tested the builds and found that the problem is between build v1.5.4-2-gcb835fb17 and build v1.5.4-9-ge3eb6d36b and on. Build v1.5.4-2-gcb835fb17 is fine but build v1.5.4-9-ge3eb6d36b runs slower.
From the descriptions, the problem can be:

-Merge: 9a732fe52 c30e4a938 Merge pull request #10113 from unknownbrackets/core-context Request a core profile in OpenGL (after 1.5.0)
or
-Merge: e11f67ed7 d2be5becc Merge pull request #10230 from unknownbrackets/savedata-new Savedata: Show icon for new saves more often
or
-Merge: cb835fb17 b36a2c608 Merge pull request #10226 from unknownbrackets/max-flips Display: Correct max FPS limiting skew

I would love to keep using updated versions of PPSSPP and still have good performance on my crappy old desktop PC.
Maybe its only a small issue and maybe its something that gone wrong and that should be fixed. Can you or someone take a look at this?