There was a problem fetching the pipeline metadata.
Use simple apply in f_equiv and solve_proper.
As suggested by Pierre-Marie Pédrot in the Coq-club thread: [Coq-Club] Very slow failing apply To work arround some performance issues in Iris.
As suggested by Pierre-Marie Pédrot in the Coq-club thread: [Coq-Club] Very slow failing apply To work arround some performance issues in Iris.