Some repacks bundle a playable version of Miniclip Runner (a Flash game converted to Lua Player Plus for PSP). While not exactly Temple Run, it offers swipe-to-turn mechanics and obstacle jumping. This repack is popular because it runs on using the HBL (Half-Byte Loader) exploit.
If you are low on space, you can use tools like PSP ISO Compressor to convert large ISO files into the more efficient CSO format. Temple Run Iso Games For Psp - Facebook temple run iso games for psp repack