Many laptops run PGMMV on the integrated Intel GPU by default, causing lag and crashes. Force the dedicated GPU:

: Add PGMMV to your antivirus/firewall exceptions. Antivirus software often flags PGMMV because it uses HTML5/JavaScript technologies. Install VC Redistributables

He did not stop trying the technical fixes — driver updates, community threads, obscure flags toggled like arcane levers. Sometimes the game would render full and proud and take the whole display like a conquering flag; other times it would refuse. He learned to build both ways. He created a start menu that adapted: if the engine allowed full-screen, it opened the gates wide; if not, it adjusted, rearranged, told the player the same story inside a window.