Final Fantasy Hacktics

Hi, using psx v1.13 and running fft iso, unpatched or patched no difference, the emulator just runs terrible. it seems like it runs too fast for the most part and then stutters a lot.  I have a pretty high end system but have never run this emulator on this system (older computers, many times).

Anyone else have this issue and figure it out? I have tried two separate psx1.13 files and both have done the same.

So, I've been playing JOT5, and when I got the Barius Valley fight, with the 2 bandits being attacked, I can only put 2 people into the battle.  Is that normal?  It just seemed strange to me. 

Usually you would press start and be able to add more people in a different location (like the original FFT) but it didn't seem to work, it just started the battle with 2.