Hi Contentt,
There is more about the different types of support systems that are generally suitable for different types of mattresses and some examples of each of them in post #1 here.
In general terms … a latex mattress will do best on a support system that is strong enough to support the weight of the mattress and the people sleeping on it and that has very little to no flex under the mattress and has a large enough support surface area and small enough gaps in between the load bearing surfaces or slats (generally 3" or preferably less) to prevent the mattress from sinking or sagging into any gaps in the support system over time.
It sounds like your bedframe is designed to be used in combination with a regular or low profile foundation or a bunkie board to provide suitable support under the mattress and isn’t meant to be used directly under a mattress since the gaps between the slats would be too large. The legs to the floor for center support would probably be fine with a suitable foundation. Some of the suggestions in post #5 here may also be helpful if you want to reinforce the strength of your bedframe along with using a suitable foundation.
If you can provide a picture then it would be easier to make suggestions if you want to modify your bedframe itself instead of using a foundation.
Phoenix