eoのWeb鯖
Pinging www.eonet.ne.jp [61.122.241.138] with 32 bytes of data:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Minimum = 2ms, Maximum = 3ms, Average = 2ms

任意のeo
Pinging 219.122.211.* with 32 bytes of data:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Minimum = 3ms, Maximum = 4ms, Average = 3ms

任意のusen
Pinging usen-43x232x67x*.ap-USEN.usen.ad.jp [*]
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Minimum = 26ms, Maximum = 31ms, Average = 27ms

任意のyahoobb
Pinging YahooBB21818124404*.bbtec.net [*] with 32 bytes of data:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Minimum = 13ms, Maximum = 37ms, Average = 21ms

任意のplala(ADSL)
Pinging u08408*.ap.plala.or.jp [*] with 32 bytes of data:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Minimum = 14ms, Maximum = 15ms, Average = 14ms

そんなに遅いわけじゃないな。
FPSでpingが悪いのは相手サーバが重い処理をしてるからでは？
そもそもFPSやUOの対人では互いにpingの応答時間が50ms以下なら、
後は実力やPC性能が大きいしね。
心配するほどのことでもないかと。