CustomUnavailableHour slows down the UI on Resources view

[SwikarBhattarai]

Before submitting a new issue

• [x] I tested using the latest version of the library, as the bug might be already fixed.
• [x] I tested using a supported version of react native.
• [x] I checked for possible duplicate issues, with possible answers.

Bug summary

When i use renderCustomUnavailableHour props to render custom unavailable hour, it is slowing down the UI on resources view only.

Library version

2.5.6

Environment info

Macos M2

Steps to reproduce

1. use renderCustomUnavailableHour={renderCustomUnavailableHour} when rendering resources view

Reproducible example repository

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