But this is not a helpful diagnosis and in fact can give a very misleading interpretation
Growing up, I heard people say this about Pakistan as well. But it's wrong ...
So if rate of investment is low, obviously "saving" will be low as well - *by construction*
The more interesting is the horse vs. cart question: Is saving constrained by investment decision?
The answer most-often is YES in the context of countries like Pakistan
e.g. consider agriculture, often a dominant sector in such countries
but that just reflects the fact that farmers are not investing much in agriculture
the real question is not "low saving", but "why are farmers not investing more?"
So the real question is, why are farmers not investing in these technologies to make more money?
there may be a missing rental market for leveling or seeding technology that most individual farmers cannot afford to out-right own
There may be a lack of local research facilities that can experiment with new technologies so local farmers can adopt them without a high-level of risk
etc. etc.
Instead, think of it as an "under-investment problem" that requires solving bottlenecks and market failures, and building public institutions.