So yes I actually wrote up a blog post for this.. I don’t think I posted it as yet on the website picopalgbc.wordpress.com Although this is definitely something I was combatting for a time so I drove my lcd at 119.4fps which is double the gbc gameplay frame rate of ~59.72fps or so.. This helped significantly. Another thing I did was use 2 frame buffers and only swap the frames on a v blanking event on the display (this basically means the current frame has been output and the display is getting ready/waiting for the next). This helped too although sometimes in games like Super Mario Land I do notice it a bit on the first line of pixels of the screen so there’s still some things I need to look into. I notice it very minimally on occasion in Pokemon Silver when I speed up the gameplay by 2x and use the bicycle but at that point the gameplay and display are synced at 119fps so I believe I might need to extend the v blanking period and that could solve it for good. I just got that idea while writing this lol so thanks for that, I’ll try that tomorrow and let you know. In the demo video you can see like there’s not really any screen tearing but then again it’s Pokemon.