Ah, ok. Those temps look ok. One more tip; the superdrives that came with those mbp are usually broken by now. If that’s the case it may be worth opening the thing up, removing the drive and cleaning out the fan. The empty drive bay improves airflow quite a bit because of the drive bay slot.
Removing the back cover is straight forward, just lay out the screws in the order you’ve removed them. When putting them back keep in mind that the screw holes aren’t vertical but slightly angled inwards. Here’s a shot of mine with the superdrive removed.
Set these lines in etc/default/grub to:
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
GRUB_TERMINAL_OUTPUT=console
Followed by:
sudo update-grub
mkinitcpio -P
And reboot.