PPSSPP has had a new release of the PSP Emulator for Android and Windows, heres whats new in this latest release:

Changes:1.5 has support for Vulkan, the new faster way to draw graphics. Supported on many modern Android devices, and if enabled (change Backend in Graphics settings) you will see a massive speed boost. PPSSPP 1.5 also has the usual assortment of fixes:
- Full Vulkan support, also for Android now. Very fast on supported devices. (#10033, #10049)
- Smarter graphics state management, reduced CPU consumption on all backends (#9899)
- Android: Support for Arabic and other scripts we couldn't support before
- Fix Android widgets, screen scaling (#10145)
- Fixes to video dumping
- Geometry problems fixed in Medal of Honor
- Implement immediate draws, fixing Thrillville (#7459)
- Software rendering improvements, speed and accuracy
- Hardware tesselation of PSP Beziers and Splines (used by a few games)
- Partial sceUsbGps and sceUsbCam support (Android)
- Android "Sustained performance mode" to avoid thermal throttling (#9901)
- Linux controller mapping fixes (#9997)
- Assorted bugfixes and compatibility improvements
- Released a quick update to take care of some common crashes in 1.5.
File: Download
File: Download
News source: http://www.ppsspp.org
News source: https://play.google.com

via http://forum.emu-russia.net/viewtopic.php?f=26&t=6989