Significant lags on certain tasks

## Issue
Significant lags occurred while running certain tasks, which they should not lag.

## Spec
**Device**: iPad Pro 3
**OS**: iPadOS 16.5
**iSH**: Installed from App Store
**Vim**: 8.2, installed through `apk add` and iSH's package repo
**Git**: 2.41, installed through `apk add` and Alpine's edge package repo

## Examples

### Vim
Vim took seconds to open, other actions also have huge delay, including but not limited to:
- switching between modes
- opening new tabs
- execute some commands

The lags occurred regardless of plugins.

### Git
Cloning a small repo took minutes, which should be done in seconds.

## Comparison
Tasks mentioned above can be done lightning-fast on PC. In the context of iPad, a-Shell handles these jobs pretty swiftly, hence I believe the speed can be improved.

No source file, test, or entry point is named. Start by reproducing the Vim delays and slow Git clone on the stated iPadOS and iSH setup, then compare the behavior with the reported PC and a-Shell results. Done would require identifying a specific cause and demonstrating improved performance, but the issue does not define a target threshold.

Written by the indexing model from the issue text.