Background:-

Quote: Why PPSSPP so slow on my phone/PC/device?



PPSSPP IS LAGGING MAH PHONE, HALP PLZZZ!



I can't get full speed in game X, SOMEONE HELP ME PLZ?

The guide:-

Frameskipping

major performance boost on mobile devices

60 FPS games work best with odd numbers, 30 FPS games work best with even numbers, but the opposite holds true if using Non Buffered Rendering mode.

Auto

Auto frameskip has been seperated out of the Frameskip options. You can now manually decide on range of frames for Auto frameskip to skip to, and then tick the Auto Frameskip option.

Non Buffered Rendering

May break games that need Buffered Rendering

OR alternatively

Buffered Rendering

Read Framebuffers to Memory (CPU) OR Read Framebufers to Memory (GPU)

e.g. Danganronpa

Texture Scaling

OFF

Hardware Transform

Vertex Cache

Low quality spline/bezier curves

significantly reduce the quality of rendered splines and bezier curves

subsequent performance gains

games that use them

Using Final Fantasy IV as an example, Low Quality on the left and High Quality on the right hand side

1x or 2x rendering resolution.

Rendering Mode is set to Buffered Rendering

Non Buffered Rendering Mode

device's/window's native resolution

low rendering resolution

Buffered Rendering Mode

Non-Buffered Rendering mode

"Change CPU Clock"

something lower

Warning: Lowering the CPU Clock too much will cause unpredictable behaviour within games like SPS (Spiky Polygon Syndrome), jerkiness and flickering. Experiment at your own risk.

Turn OFF all other background applications

Update your drivers

JIT (Dynarec)

Fast Memory

Vsync

-Windows only, since Android devices have Vsync always on-

Enable Debug Logging

this option is located under Developer Tools in the System Menu

very minor to major performance boost

Force 60 FPS or less

major performance boost

Multithreaded(MT)

highly experimental

enabled

Noted side effects from enabling this option include:-

Postprocessing Shaders (formerly known as FXAA)

moderate speedup

highly recommended if Software Skinning is enabled

may cause graphical glitches in games, disable it if you find any that makes games unplayable

only for PowerVR devices, option is hidden for other devices

will cause graphical glitches in games, disable it if you find any that makes games unplayable

this feature offers rather mixed results; it provides an incredible performance boost to certain games, but can also reduce performance in others.

this feature provides a consistent performance boost to nearly every single game, with almost no downside, except in a few cases, e.g. A delay in displaying/refreshing text in certain games and shifting textures. Games affected include Danganronpa and Growlanser so disable it in those games.

provides almost little to no performance benefits in most cases. Enable it only if you're absolutely desperate for every FPS you can get.

Display Resolution (HW scaler)

1x PSP

More will be added as we discover them in future revisions. Stay tuned. Future images will be hyperlinked since I've hit the image limit for this forum per post.