Need to lower my cable bill - Superfast Internet is super-useless to me!

I'll try to make this post as uncomplicated and clear, though it will be somewhat long in order to provide detailed information.

My goal is the [lower my cable bill as much as possible], while keeping my TV service but changing the Internet service/tier.

Currently, the bundled services I have are:

Ultimate TV 185+ channels ($90.00)  

Superfast Internet - download as fast as 600 Mbps ($99.00)

Note: I am currently receiving a $30.00 credit each month towards my Internet service through the Federal Government's Affordable Connectivity Program (ACP). Before that I had received a $50.00 credit each month through a different (now ended) program, though that lasted only for a few months.

My montly bill previously was in the low 130s and is currently at $170.00 + change. Naturally it would be considerably higher without the so-called bundle discount and the monthly ACP credit, which would have left me no other alternative/choice in my specific financial situation to cut-the-cord (to coin a popular phrase) for TV and probably for broadband Internet as well.

There was a time when I had leased an Arris modem/router from Comcast and even though I had originally started with a tier called Performance Internet, then went to a bundled-with-TV tier called BLAST (with some free speed boosts along the line), I was never able to take full-advantage of the rated "up to" download speeds for Ethernet as I do not use that type of connection, ever.

I ONLY use a laptop, a tablet/PC and a smart phone. Seldom at my residence is there more than one device connected and in use on the Internet. I have three Smart TVs though do little streaming on those and mainly rely on content provided through the X1 TV boxes.

Since I use a Wi-Fi connection (Wireless Gateway), I have never been able to achieve download speeds higher than in the mid-to-upper 50s and typically in the low 40s, even when I had leased two Arris modem/routers, one a single band and one a dual band.

To save money, like many, a few years back, I purchased a compatible modem/router. In my case, a Motorola unit. I don't use Ethernet as I had mentioned previously but I ran a test, several times, on diffferent days at different hours on all three of my Laptops (various makes and models and date of manufacturing, going back a few years to a year ago) and download speeds never surpassed 250 Mbps (boosted upload speeds are at or slightly above 20 Mbps now) though the Motorola unit is rated at 343 Mbps maximum cable modem speed. Wi-Fi was consistantly in the lower-to-mid 40s Mbps download speed though the Motorola is rated at 450 Mbps maximum WiFi speed. That Wi-Fi speed was at some times typical with those Arris modem/routers that I had leased.

The bottom line is that while I am ok with the level of TV service presently (subject to change at any time of couse), I am not at all ok with having/being charged for 600 Mbps download speed on Ethernet connection that I can not make full use of, not even anywhere near that since I am strictly a WiFi user. I am well aware of the advertising blitz on TV and Radio for T-Mobile and Verizon's new 5G Home Internet Service that provides free of charge equipment and prices as low as $25.00 if you already have a smart phone service plan with either carrier or it's $50.00 just for the stand-alone 5G Home Internet service. That certainly looks like an attractive alternative and while the rated download and upload speeds may not be as high as Superfast, to me, that is totally/obviously a non-issue at this time. Also, AT&T out by me offers fiber-optics based hi-speed Internet service plans which I haven't looked into as of yet.

**Just to add, there is currently no problem with the drop cable outside, the three-way splittter, the cables/connectors  hooked to that splitter and the connections inside my residence. The Motorla modem/router is just a few years old so I don't plan on replacing that unless need be IF I stick with Comcast down the road.