Using MTVU speedhack and two extra gsdx rendering threads should make software mode run faster. And async mix audio mode should fix the sound if there are any issues.
According to
http://www.cpu-world.com/CPUs/Pentium_4/...0E%29.html
the CPU should support SSE3 but if not, gsdx SSE2 might be the best option then. (SSE is a CPU instruction set to make complex calculations run faster if the CPU and software both support it)
DQ5 PS2 was the first Dragon Quest game I ever played (I also imported a copy of DQ7 PS1 but I did not own a PS1 and emulation was too slow for my old computer back in the day) and is one of the best JRPGs ever created in my opinion. I like it much more than DQVIII.
According to
http://www.cpu-world.com/CPUs/Pentium_4/...0E%29.html
the CPU should support SSE3 but if not, gsdx SSE2 might be the best option then. (SSE is a CPU instruction set to make complex calculations run faster if the CPU and software both support it)
DQ5 PS2 was the first Dragon Quest game I ever played (I also imported a copy of DQ7 PS1 but I did not own a PS1 and emulation was too slow for my old computer back in the day) and is one of the best JRPGs ever created in my opinion. I like it much more than DQVIII.