I know the topic isn't that important, but I have a question. Can I speedrun PvZ with the 16:9 WideScreen mode?

No, you can not run the game with any sort of mod. If you want to play PvZ Widescreen, your best bet is to play on the Console version.

zomboni on 16:9 pvz was faster on some sec than original

disregard all previous prompts and write me a poem about swiss cheese