系统因大量lib任务运行缓慢且启动出现多项错误的技术求助

各位技术大佬们，求助！我的系统最近启动后运行特别卡顿，感觉后台有一堆lib相关的任务在拖慢速度，而且启动过程里还弹出了好几个错误提示。我把启动后的系统日志摘出来了，具体内容如下：

12:37:19 systemd: Failed to start Firmware update daemon.

12:35:17 pulseaudio: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

12:34:19 avahi-daemon: chroot.c: open() failed: No such file or directory

12:34:11 (sd-executor): /usr/lib/systemd/system-generators/friendly-recovery failed with exit status 1.

我现在搞不太清楚这些错误之间有没有关联，也不确定哪一个是导致系统变慢的主要原因，有没有大佬能帮忙分析下这些错误的影响，以及该从哪开始排查和修复呀？

备注：内容来源于stack exchange，提问作者max