Faster WiFi speed for G5 tower

Hi all!!
I revived my old G5 tower a month ago and connected to my new fibre optic connection via WiFi and it's SLOWWWW compared to my
MacPro withch is connected through ethernet (no problem there). My question; Is there a FASTER wifi card for the G5 or what can I use
to speed up my wifi connection?? I know I can just go 54mbps with the card that I have now but need to go at around 250mbps. Any help
is welcomed!!!
THANKS!!!
Serge

So we know more abot it...
At the Apple Icon at top left>About this Mac.
Then click on More Info>Hardware and report this upto *but not including the Serial#*...
Hardware Overview:
Machine Name: Power Mac G5 Quad
Machine Model: PowerMac11,2
CPU Type: PowerPC G5 (1.1)
Number Of CPUs: 4
CPU Speed: 2.5 GHz
L2 Cache (per CPU): 1 MB
Memory: 10 GB
Bus Speed: 1.25 GHz
Boot ROM Version: 5.2.7f1

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sure, you assume correctly (though looking around the Internet would suggest slow wifi speeds on macs are not unheard of...)
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Faster WiFi speed for G5 tower

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