Matlab2025b plotting sluggishness/inconsistencies

Kristoffer Walker

2026 3 12

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Folks,

I am having great difficutiles using the Matlab 2025b "plot" command from a standard Matlab console or script to generate simple plots of 1d arrays like x versus y using the '-' line (not individual points). It worked fine in Matlab 2022b. The arrays have sizes of 300,000 x 1. The issues I am getting are in the form of hangs and the axes not automatically scaling to the correct boundaries to show the data. I am wondering if others are having such issues, and if there is a rendering setting I can change that might improve the behavior to more like 2022b. This is my first experience with 2025b and I'm very concerned.

Best regards,

Kris

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Walter Roberson 2026-3-13

If you were to contact Mathworks Support, it is not entirely impossible that they might have already have a published bug report with solution for this situation. I don't think it is all that likely, but it is not impossible.

Short of that, there is no solution that does not involve a certain amount of experimentation.

Kristoffer Walker 2026-3-13

I know. I lost interest in trying different renderers between when I first posted this and earlier today when I just had too many issues. Feel free to delete teh post.

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