Performance drop from net8.0 to net8.0-ios?

[simonetino]

Hi,

We are experiencing a performance issue with our product when running in MAUI.

Our product is essentially a .NET library compiled for net8.0: we experience that the performance of our main service drops from half a second in net8.0 to 8 seconds in net8.0-ios or net8.0-maccatalyst.

We are aware of the interpreter enabled by default in Debug mode and also of the JIT compile, therefore our tests are done in Release mode and with the PublishAot property set to true in the app .csproj.

We want to identify where in our product this is happenining, however, we can't seem to find any documentation of cases and scenarios that could cause this.
Does anyone know where we can find that? We would very much like to investigate this further, but first we need to understand which scenarios, libraries and/or coding patterns could cause this.

Thank you.