delta dj-20 jointer infeed table bowed

Hello- So I bought this dj20 used but very clean. I didn't think of checking surface at the time ( rookie, I know) and as I was coplaning the tables today I noticed my infeed table is bowed. I mean when I put a straightedge (a good one) across the length on the infeed table only, I can rock it. it's flat in its width (8") everywhere but across the length it kinda starts dropping down half way through so the 8" edge at the beginning of the table (right hand side) is like 0.02 lower than any 8" cross section in the middle or further left on the table. I was thinking if I put pressure on boards that I'm jointing from the half point of the table forward or even on the outfeed table instead, this shouldn't effect the work much. Am I missing something? Also if I'm doing long boards could I put some of those slippery tapes (dont remember the name) on the beginning part of the table to make up for this drop? I know that doesn't sound very good either. Is there a way of fixing this, short of having a machine shop grinding it, and do I need to fix it or my earlier thoughts could work? Thinking a machine shop perhaps chargea enough to make this not worth it. It's a bummer as I was very excited about this buy
Thank you all in advance for your opinions.

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delta dj-20 jointer infeed table bowed