The problem is '''new drives [http://www.everymac.com/systems/apple/powermac_g3/faq/power-mac-g3-how-to-upgrade-replace-hard-drive.html|write too slow]''' ''in "backwards compatible mode".'' [http://eshop.macsales.com/item/OWC/SSDMXLE120/|This might be an option], '''but [http://eshop.macsales.com/service/livechat|contact OWC]''' to see if they have any other solutions or advice.
''If this answer was helpful please '''remember to return an mark '''it Accepted.''