Well, this is a major problem.
First, your performance is reduced because the temperature in your muscles is not high enough yet to optimally allow enzymes to function. Its the Q10 effect.
Second, the sympathetic nervous system has not yet been activated. This means that your adrenal glands are not yet activated, which means arousal is less and mobilization of fuels is comprimised. (this is how preworkout stimulants can be performance enhancing).
Third, mobility around the joints being used is less. This is because tendons and ligaments are still cold, and the ancillary and stabilization muscles are not being activated. Stretching the antagonists and activating the agonists have dramatic effects on power output. For example, before squats stretch your hip flexors and do supine bridges to activate the glutes.
Thus, a thorough warmup is critical to optimal performance. This should include
3-5 min of light aerobic exercise (jogging, rope jumping, biking, etc.)
General Dynamic mobility stretches
Antagonsit static stretching
Finally, warm up sets of the specific movement.
Br