Linux 下 HP 打印机打印缓慢，可能原因是？

打印机是 M227fdw ，驱动为 hplip 3.22.10 中的 HP_LaserJet_MFP_M227-M231 。

打印 PDF 等文件时非常缓慢，一页要等待一两分钟，打印时 ps auxf 的输出见附言。

请教下各位大佬可能的原因。USB 线速度不够？开启了 fit-to-page 选项？还是应该选择支持 PCL 4/5 驱动（而非 ghostscript ）的老打印机，比如 2050D ？

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      995347  0.0  0.0  27420  9912 ?        Ss   00:00   0:14 /usr/sbin/cupsd -l
lp       2180765  0.0  0.0  16344  5484 ?        S    11:37   0:00  \_ /usr/lib/cups/notifier/dbus dbus://
lp       2322670  0.0  0.0  22296 10592 ?        S    11:55   0:00  \_ HP_LaserJet_MFP_M227-M231 93 deploy test.pdf 1 finishings=3 fit-to-page fitplot number-up=1 print-color-mode=monochrome job-uuid=urn:uuid:361eab99-8591-3958-43b0-830a6f9f02ea job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1685246106 time-at-processing=1685246106 document-name-supplied=test.pdf
lp       2322684 24.0  0.1  57936 27136 ?        S    11:55   0:01  |   \_ gs -q -dNOPAUSE -dBATCH -dSAFER -dNOMEDIAATTRS -sstdout=%stderr -sDEVICE=ps2write -dShowAcroForm -sOUTPUTFILE=%stdout -sProcessColorModel=DeviceGray -sColorConversionStrategy=Gray -dLanguageLevel=3 -r600 -dCompressFonts=false -dNoT3CCITT -dNOINTERPOLATE -c save pop -f /tmp/2370ee647472f3
lp       2322685  0.0  0.0  19500  7388 ?        S    11:55   0:00  |   \_ HP_LaserJet_MFP_M227-M231 93 deploy test.pdf 1 finishings=3 print-color-mode=monochrome job-uuid=urn:uuid:361eab99-8591-3958-43b0-830a6f9f02ea job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1685246106 time-at-processing=1685246106 document-name-supplied=test.pdf
lp       2322671  0.0  0.0  16524  6856 ?        S    11:55   0:00  \_ HP_LaserJet_MFP_M227-M231 93 deploy test.pdf 1 finishings=3 fit-to-page fitplot number-up=1 print-color-mode=monochrome job-uuid=urn:uuid:361eab99-8591-3958-43b0-830a6f9f02ea job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1685246106 time-at-processing=1685246106 document-name-supplied=test.pdf
lp       2322672  0.0  0.0 170612  5692 ?        Sl   11:55   0:00  \_ hp:/usb/HP_LaserJet_MFP_M227-M231?serial=VNH4656432 93 deploy test.pdf 1 finishings=3 fit-to-page fitplot number-up=1 print-color-mode=monochrome job-uuid=urn:uuid:361eab99-8591-3958-43b0-830a6f9f02ea job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1685246106 time-at-processing=1685246106 document-name-supplied=test.pdf