No low end power. Boat lags VP5.7

Joined
Apr 11, 2019
Messages
7
Posting for more help..
Volvo penta 5.7GIJ on a regal 2200.
When running the boat, after about 15 minutes I have no low end power and have trouble getting up on plane, it lags. I throttle down to go and the rpms go up but the boat just bogs down and pushes alot of water then eventually gets up plane and then flys. It's like no hole shot power.

I've had the prop checked for the hub, I've changed the lower gear oil and the fuel filter.

What other ideas can you suggest I check?
Thank you
 
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