For some reason when I launch the game from the Mojang launcher I get 1-2 FPS even with OptiFine, but when I launch it with the Twitch launcher I get 15-20 FPS even without OptiFine (I don't know why). The problem is that I want to play on version 1.14.4 and Forge 1.14.4 is still not compatible with OptiFine.
I tried allocating more RAM and I even copied the exact same parameters from the Twitch launcher to the Mojang launcher, and still nothing.
Here's a screenshot (notice how I even lowered the graphics and view distance to the minimum).
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