PS C:\> $script = [scriptblock]::Create("(1..10000) | % { [pscustomobject]@{name=`$_;version=`$PSVersionTable}}")

PS C:\> $ubuntu   # running as VM on same client machine

 Id Name            ComputerName    ComputerType    State         ConfigurationName     Availability
 -- ----            ------------    ------------    -----         -----------------     ------------
 12 SSH12           slee-ubuntu16a  RemoteMachine   Opened        DefaultShell             Available

PS C:\> $ssh

 Id Name            ComputerName    ComputerType    State         ConfigurationName     Availability
 -- ----            ------------    ------------    -----         -----------------     ------------
 13 SSH13           slee-thinkpad   RemoteMachine   Opened        DefaultShell             Available


PS C:\> $wsman

 Id Name            ComputerName    ComputerType    State         ConfigurationName     Availability
 -- ----            ------------    ------------    -----         -----------------     ------------
 14 WinRM14         slee-thinkpad   RemoteMachine   Opened        Microsoft.PowerShell     Available

PS C:\> (measure-command {invoke-command -session $ubuntu -scriptblock $script }).totalmilliseconds
9862.1602
PS C:\> (measure-command {invoke-command -session $ssh -scriptblock $script }).totalmilliseconds
8779.3777
PS C:\> (measure-command {invoke-command -session $wsman -scriptblock $script }).totalmilliseconds
5029.1733

Name                           Value
----                           -----
PSEdition                      Core
BuildVersion                   3.0.0.0
WSManStackVersion              3.0
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
CLRVersion
PSVersion                      6.0.0-alpha
SerializationVersion           1.1.0.1
GitCommitId                    v6.0.0-alpha.13-27-g9c9b56d22f81c449893cc4a93ef2b9075cdcf43c