How To Improve Testosterone And Sperm Parameters ?

Question : Hello I m 28 yr old female , my husband is 32 years , non smoker and non alcoholic, married since 2 yrs trying for baby for 6 months for first 2 months tried naturally , no success , then took follicular study in next 2 months ,ovulation occurs and follicle ruptured at 20 mm in day 14 those 2 months were also unsuccessful , I have regular 29 day cycle Ultrasound also normal , then decided to do hormone analysis my prolactin was 36 ng/ml took Tab .cabergoline 0.25 mg weekly twice for 2 weeks and my husband’s testosterone was 10 ng /ml and semen analysis volume was 3 ml ,count 10 million /ml ,progressive motility only 5 % ,morphology 4% , ogcian suggest maxozoa powder BD ,tab enq Q 300 mg OD , tab zinc, folic acid and evion OD continued for 2 months
Repeat semen analysis shows volume 4.5 ml , count 9 million /ml ,motility 11% , morphology 1 % but now his testosterone is 1.6 ng /ml , LH -10.3Iu /ml ,FH - 5.7 mIU /ml , SHBG -24 nmol /l and consulted XXXXXXX he prescribed 5 mg 1 OD and tadalafil 5 mg 1 OD and Lyon beans capsule asked to continue for 2 months.
Will it help us to continue naturally
Will it improve testosterone and sperm parameters

XXXXXXX prescribed
Letrazole 5 mg OD
Tadalafil 5 mg OD

Can increasing testosterone will increase sperm parameters??