Are there any basic "hacks" that everyone using Retropie (on a Pi 3) ought to do?

[Baz]

I've recently being playing a lot of THPS4 on my Retropie machine and only from my brother casually mentioning it in conversation, I didn't know about the double resolution hack. Since doing it, my PS1 games look amazing!

Are there any other simple hacks like this that I (and others) may have completely overlooked in the past? Serves me right for not really reading the wiki and just diving straight in, I guess.

For what it's worth I have roms for most of the available systems but have been quite picking in selecting mostly multiplayer/party games, with the odd single player one thrown in. eg Metal Gear Solid looks a load better since doubling the resolution!

[mitu]

For starters, using Shaders to get a better (or worse) picture, or using bezels to decorate your display area.

[meleu]

@Baz not sure if this is exactly what you are asking for, but 2 years ago @Floob started a thread named What tweaks do you make to your RetroPie setup?

Probably many of those tweaks are already part of the official retropie_setup script, but maybe you can find good tips there.

And here is my contribution on that topic.

[quicksilver]

You could also look into the new(ish) run ahead feature. It helps to eliminate input lag and from what I understand works very well on early system emulators. https://retropie.org.uk/forum/topic/17438/new-emulation-method-to-eliminate-input-lag