I'm not sure what you mean by the leaves growing down. Older leaves sometimes get pulled down by gravity as they age. (Don't we all!!) The older leaves may also be reacting to the change in light because they are not acclimated to direct sun, whereas the new leaves coming in are.
If your plant is too tall it is likely because it was never pruned. The tall stems can be pruned back to just about any height that you prefer and new growth will emerge on the pruned stem starting just below the pruning cut.
