Lab Priorities for Beginners?

Hey ya'll -

I relatively new to the game and finally unlocked all 5 labs. I have a general sense as to what may be good... but just wanted to confirm with the community in case I am missing something.

For me, I am currently prioritizing the following 3 as a must-run nonstop until max:

• Lab Speed (lv. 28)
• Game Speed (lv. 7)
• Coins / Kill Bonus (lv. 18)

Other than the above, I personally liked and have been working on:

• Defense (lv. 17)
• Defense Absolute (lv. 9)
• Health (lv. 30)
• Damage (lv. 15)
• Attack Speed (lv. 10)
• Range (lv. 12)
• Critical Factor (lv. 7)
• Cash (lv.7)

I do see a lot of expensive lab research I could save up for that seems good, but I don't make too much coin. My current coin generation is around 100~250K/min during runs. Is there something else I should be prioritizing heavily?

As for workshop, I just unlocked the Super Crit. Wall is next, but I've read that I should not unlock wall until much much later, so I plan to stay away from that for a while (most of my pushes through bosses is via thorns. I have not yet reached Wave 1,000 on Tier 2, so I don't have garlic thorns (not sure what that is yet even).

Note: I have GT and BH, and working on trying to get GT's CD down to match BH as my goal for UW.