The term "Arquivo" (Portuguese for "Archive") suggests this is likely a repackaged or pirated version of the game.
: Repacks of this size (v1.12.5 with all DLC) are large and require significant CPU power for the late-game "tick" speed. Arquivo: Hearts.of.Iron.IV.v1.12.5.Incl.ALL.DLC...
1.12.5 is generally considered a stable "long-term" version for modding. Many total conversion mods (like Kaiserreich or The New Order ) maintained compatibility with this branch for a long time. The term "Arquivo" (Portuguese for "Archive") suggests this