Philips 220e 60hz how far can i push it with overclocking?

Hello!

i have a question about how hard i can overclock my old Philips 220e screen.

its supports 1920x1080 on 60hz

and it supports 1152x864 on 75HZ

so i want to know how far i can push the limits. i dont know much about overclocking a screen i dont want to be stupid and just do random things and break the screen. Its my first time so could you guys also post some advice for me.

Thanks for reading me bad english!