just get the OGL2 GPU plugin and max it out, then tweak from there. Very High Y Resolution should be the first thing you lower, as it works with very few cards. High looks pretty good still, though. I can max out almost every setting on my PC w/o speed issues, and it is not as good as that setup. No matter what, tweaks will be necessary to get the best out of your system. Go experiment.
I've got a gigahert PC with 256MB ram(and hell knows if it's got a graphics card and what, it's most likely on-board) at the moment, chrono cross seems to play at almost normal speed. I think the Settings are 640x480, Nice colours, standard off screen drawing, framebuffer textures & access both emulated VRam.
Any higher than that and it slows down...
Do think I could optimise it?
....and are PS1 games slow on PCs faster than the ps1 itself because there running under windows or what?....
PS1 games are slow on PCs because the PS1 does not have an Intel processor in it, but rather a MIPS. So the code for a PS1 game cannot run directly on an x86 processor.
To run a PS1 program on a PC a program has to be written that simulates the MIPS processor. So each instruction in a PS1 game becomes many instructions in a PC - read the PS1 instruction, figure out what needs to be done, translate the PS1 addresses into addresses in the simulated processor, then several instructions to do the actual operation, then several to update the virtual processor instruction pointer, stack pointer, etc.
Has nothing to do with Windows per se; would be equally slow on a Mac (IBM PowerPC processor) or in the Linux operating system (Intel processor again) or on a Sun (Sparc processor) of equivalent power.
You can speed things up a tad in Windows by killing all the background processes you don't need to have running. I wrote a script for mine called GamePrep.bat that kills all unnecessary processes, shuts down all unnecessary services, etc.
Sure...but you'll need to customize it for your system; your list of typically-running processes and services will probably be different from mine.
Oh, and you'll want to disable or shutdown your internet connection before you run this, as it will (try to) turn off things like virus scanners, firewalls, etc. ...which means you'll have to re-enable the internet connection after you reboot. If you use the ZoneAlarm firewall, you'll need to shut it down manually as it won't allow scripts to kill it.
net stop "Application Layer Gateway Service"
net stop "ATI HotKey Poller"
net stop "Automatic Updates"
net stop "avast! iAVS4 Control Service"
net stop "avast! Mail Scanner"
net stop "avast! Web Scanner"
net stop "avast! Antivirus"
net stop "Computer Browser"
net stop "CVSNT"
net stop "CVSNT Locking Service"
net stop "DHCP Client"
net stop "Distributed Link Tracking Client"
net stop "DNS Client"
net stop "Fast User Switching Compatibility"
net stop "Help and Support"
net stop "IPSEC Services"
net stop "LexBce Server"
net stop "Machine Debug Manager"
net stop "Windows Firewall/Internet Connection Sharing (ICS)"
net stop "Network Connections"
net stop "Network Location Awareness (NLA)"
net stop "Print Spooler"
net stop "Server"
net stop "SSDP Discovery Service"
net stop "System Restore Service"
net stop "Task Scheduler"
net stop "TCP/IP NetBIOS Helper"
net stop "UPS Service"
net stop "WebClient"
net stop "Windows Image Acquisition (WIA)"
net stop "Windows Time"
net stop "Wireless Zero Configuration"
net stop "Workstation"
net stop "TrueVector Internet Monitor"