Rom Grk

[core] perf: sx

4

Improve `sx` performance by removing allocations. [Example user code](https://gist.github.com/romgrk/03bd148e5e93e5a166b3f195e86562fd): ``` Before: 23.4ms +-1.6 After: 15.2ms +-1.1 n=100 ``` We get roughly **35% less rendering time** for the example above which...

Performance: compat `shallowDiffers`

1

This util is used to compare props. Props are more likely (I'm guessing) to have the same shape from one render to the next. Therefore, it's better to check first...

docs: wheel event cancelable note

1

### Description Add note on the cancelability of the `wheel` event. ### Motivation Current description is inaccurate for chromium. ### Additional details See https://issues.chromium.org/issues/40595672#comment5

[docs] Add CSS bundler breaking change to migration guide

6

Follow-up of https://github.com/mui/mui-x/issues/17427

perf(lruMemoize): avoid reallocating entries

2

Avoid allocating a new entries array on each call.

[core] perf: state classes [draft]

2

Test case: https://gist.github.com/romgrk/023d376d54f38812c2ba3f91b96eace0 The case above was tested in joy-ui docs because there is [fine-tuning to do](https://mui-org.slack.com/archives/C089BDL6XST/p1747244615887569) to ensure babel/swc/next don't add up noise to the benchmark and I already...

[internal] Perf: remove useless code

4

Various small changes to remove useless or unefficient code.

[utils] Add `timeout.startIfEmpty()`

4

This new method will allow me to get rid of [`throttle.ts`](https://github.com/mui/mui-x/blob/1d8854d9902cbabf034ddb469793c563918dd344/packages/x-internals/src/throttle/throttle.ts) once we migrate to BUI utils in X.

`react-hooks/rules-of-hooks` false positives inside class instances (not class components)

1

We use classes to organize our code, and the eslint rule `react-hooks/rules-of-hooks` always warns about hooks not being usable inside class components, regardless if the class is a component. ###...