Golang sdl2 substitution

Dear Friends
I need to read images from a location one by one, manipulate some of its pixels and show it on a screen for a certain period of time. I must also be able to draw simple shapes like circles when needed. I tried to use sdl2. It isn’t very pleasant, it becomes unresponsive sometimes and when I run my code, each time I see different results, specially when I run it in a different routine. Can anyone introduce a very simple and fast library as a substitute to SDL2?

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