Random onPress handle in FlatList items while swiping pages

## Environment

expo v42.0.0

"react-native-pager-view": "5.4.0"

## Description

Random onPress handle in FlatList items while swiping pages
Especially noticeable on low-end android devices and in apps with many heavy components

## Reproducible Demo

There is a function in demo that imitate CPU intensive operation
in order for the issue to be stably reproduced in simple demo on high-end devices

https://snack.expo.dev/@sane.ecg/pager-onpress-issue

https://user-images.githubusercontent.com/764967/128613740-e384306f-a100-4b7c-9ade-7db12683d6e5.mp4