perf: improvement the performance of calculating scroll offset

[wellyshen]

• perf: improvement the performance of calculating scroll offset

[changeset-bot]

🦋 Changeset detected

Latest commit: 9a80031

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
react-cool-virtual	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coveralls]

Pull Request Test Coverage Report for Build 882393971

• 0 of 7 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.03%) to 2.118%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/useVirtual.ts	0	7	0.0%

Totals
Change from base Build 881705574:	-0.03%
Covered Lines:	7
Relevant Lines:	262

---

💛 - Coveralls

[github-actions]

Size Change: +112 B (+1%)

Total Size: 19 kB

Filename	Size	Change
dist/index.cjs.development.js	4.4 kB	+25 B (+1%)
dist/index.cjs.production.min.js	2.75 kB	+19 B (+1%)
dist/index.esm.js	4.34 kB	+24 B (+1%)
dist/index.umd.development.js	4.56 kB	+25 B (+1%)
dist/index.umd.production.min.js	2.82 kB	+19 B (+1%)

ℹ️ View Unchanged

Filename	Size	Change
dist/index.js	136 B	0 B

_{compressed-size-action}