Slow updateBlockAttributes on Safari

[jegbagus]

Description

Very slow updateBlockAttributes on Safari 14.0.3 (macOs big sur)

Step-by-step reproduction instructions

1. loop child block from parent.
2. do updateBlockAttributes of child attribute from parent.

Expected behaviour

updateBlockAttributes should be happened instantly. this kind of behavior not happen on other browser (firefox, google chrome, microsoft edge)

Actual behaviour

very slow update when updateBlockAttributes executed on safari.

Screenshots or screen recording (optional)

https://share.getcloudapp.com/RBu4rXDn

Code snippet (optional)

useEffect(() => {
        if (isSelected) {
            const rootId = getBlockRootClientId(clientId);
            const childs = getBlocks(rootId);

            childs.map(child => {
                if (child.clientId !== clientId) {
                    updateBlockAttributes(child.clientId, { active: false });
                }
            });

            setAttributes({ active: true });
        }
    }, [isSelected]);

WordPress information

• WordPress version: 5.6.2
• Gutenberg version: 10.0.1
• Are all plugins except Gutenberg deactivated? No
• Are you using a default theme (e.g. Twenty Twenty-One)? Yes

Device information

• Device: iMac
• Operating system: macOs Big Sur
• Browser: Safari 14.0.3

[ellatrix]

Is this fixed by #30995?

[ellatrix]

Should be fixed after #30995. Please reopen if that's not the case :)