Time-consuming command pattern in Get-AliasPattern function

[peetrike]

System Details

• posh-git version/path: 1.1.0 C:\Program Files\WindowsPowerShell\Modules\posh-git\1.1.0
• PowerShell version: 7.4.3, 5.1
• Git version: 2.45.0
• Operating system name and version: Windows 10 22H2

Issue Description

I am experiencing a problem with Get-AliasPattern function, that is running part of it in about 500 times when profile script is running.
The problematic code is the pattern get-alias | where . This could be replaced with get-alias -Definition "$cmd", "$cmd.exe" and it becomes ~5..8 times faster.

The similar pattern is in GitTabExpansion.ps1.