Firefox SLOW on Lenovo laptop

[smhardesty]

Hey, Jerry. I don't consider my laptops to be slow machines. You can check the hardware on this machine below. I realize that older, slower PCs can't run a lot of Linux distros and/or apps successfully, but I certainly wouldn't think either of my laptops fit that description quite yet. Maybe one of you guys sees a problem with my hardware configuration that would explain Firefox running so slowly.

Code:

System:    Host: steve-Lenovo-G50-45 Kernel: 4.4.0-89-generic x86_64 (64 bit)
           Desktop: Xfce 4.12.3 Distro: Ubuntu 16.04 xenial
Machine:   System: LENOVO product: 80E3 v: Lenovo G50-45
           Mobo: LENOVO model: Lancer 5B2 v: 31900058 WIN
           Bios: LENOVO v: A2CN27WW(V1.09) date: 12/12/2014
CPU:       Quad core AMD A8-6410 APU with AMD Radeon R5 Graphics (-MCP-) cache: 8192 KB
           clock speeds: max: 2000 MHz 1: 1600 MHz 2: 1200 MHz 3: 1200 MHz
           4: 1200 MHz
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Mullins [Radeon R4/R5 Graphics]
           Display Server: X.Org 1.18.4 drivers: ati,radeon (unloaded: fbdev,vesa)
           Resolution: [email protected]
           GLX Renderer: Gallium 0.4 on AMD MULLINS (DRM 2.43.0 / 4.4.0-89-generic, LLVM 4.0.0)
           GLX Version: 3.0 Mesa 17.0.7
Audio:     Card-1 Advanced Micro Devices [AMD] FCH Azalia Controller
           driver: snd_hda_intel
           Card-2 Advanced Micro Devices [AMD/ATI] Kabini HDMI/DP Audio
           driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.4.0-89-generic
Network:   Card-1: Qualcomm Atheros QCA6164 802.11ac Wireless Network Adapter
           driver: ath10k_pci
           IF: wlp1s0 state: up mac: d0:53:49:ce:0e:97
           Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169
           IF: em1 state: down mac: 68:f7:28:6d:07:6c
           Card-3: Atheros
           IF: null-if-id state: N/A speed: N/A duplex: N/A mac: N/A
Drives:    HDD Total Size: 1000.2GB (4.2% used)
           ID-1: /dev/sda model: ST1000LM024_HN size: 1000.2GB
Partition: ID-1: / size: 24G used: 5.2G (23%) fs: ext4 dev: /dev/sda1
           ID-2: /home size: 886G used: 25G (3%) fs: ext4 dev: /dev/sda2
           ID-3: swap-1 size: 8.39GB used: 0.00GB (0%) fs: swap dev: /dev/sda3
           ID-4: swap-2 size: 0.45GB used: 0.00GB (0%) fs: swap dev: /dev/zram0
           ID-5: swap-3 size: 0.45GB used: 0.00GB (0%) fs: swap dev: /dev/zram1
           ID-6: swap-4 size: 0.45GB used: 0.00GB (0%) fs: swap dev: /dev/zram2
           ID-7: swap-5 size: 0.45GB used: 0.00GB (0%) fs: swap dev: /dev/zram3
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 41.4C mobo: N/A gpu: 41.0
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 189 Uptime: 11 min Memory: 691.4/3412.2MB
           Client: Shell (bash) inxi: 2.2.35