Try an R30 bulb.
We have about a dozen flood lights.
The house has about 85 recessed light cans on the porches and in the house.

Honestly I am not afraid of the dark but when I turn on the lights I want light. :laughing:
If you think my house is bad, our builder built a house for a couple in the subdivision to our front. When they turn on their outdoor lights it looks like a UFO has landed.
To fill the cans we were buying cases of R30 and R40 CFLS. I left a case or two of CFLs in the house one day and the electrician installed them in the flood lights. I was going to put in incandescent bulbs in the floods but since he put in the CFLs I just left it alone.
These were indoor rated bulbs. Our fixtures while outside are under large roof overhangs so the rain never gets to them.
Warm up time is an issue, but for us, not a big issue.
Those bulbs have been in service for six years at this point. The flood lights are only used a few times a month so they should still be good.
I have had VERY poor performance from R30 and R40 CFLs from Lowes. The bulbs in the flood lights are from HD. The HD bulbs we first installed lasted as expected. Some of them in the house are still going. The Lowes bulbs I do not buy anymore. I have seen them fail after 3-6 months. The ones that quickly fail I take back to Lowes.
I started putting the install/purchase date on the light bulbs and I keep the receipt.
We got to a point where we needed another 6-12 CFLS. I have looked at a variety of places to find decent bulbs cheap. I could get decent or I could get cheap but not both.
We were in Lowes a few weeks ago and I had a coupon for $10 off a $50+ purchase. Lowes had some GE R40s in three packs for $18. The other bulbs I refuse to buy were the same price per bulb. I think our local power company was subsidizing the bulbs. The GE bulbs were very expensive at Graingers.
Later,
Dan