It looks a bit like this:

So I think if you take the tr creation outside of the loop, it should work:

getDom: function() {
    if (this.config.displayType == 'logo' || this.config.displayType == 'logoWithChanges') {
        this.folder = (this.config.coloredLogos ? 'colored/' : 'black-white/')
        return this.buildIconView(this.result, this.config.displayType)
    }
    var data = this.result

    var wrapper = document.createElement('table')
    wrapper.className = 'small mmm-cryptocurrency'

    var tableHeader = document.createElement('tr')
    tableHeader.className = 'header-row'

    var tableHeaderValues = [
        this.translate('CURRENCY'),
        this.translate('PRICE')
    ]
    if (this.config.headers.indexOf('change1h') > -1) {
        tableHeaderValues.push(this.translate('CHANGE') + ' (1h)')
    }
    if (this.config.headers.indexOf('change24h') > -1) {
        tableHeaderValues.push(this.translate('CHANGE') + ' (24h)')
    }
    if (this.config.headers.indexOf('change7d') > -1) {
        tableHeaderValues.push(this.translate('CHANGE') + ' (7d)')
    }
    for (var i = 0; i < tableHeaderValues.length; i++) {
        var tableHeadSetup = document.createElement('th')
        tableHeadSetup.innerHTML = tableHeaderValues[i]
        tableHeader.appendChild(tableHeadSetup)
    }
    wrapper.appendChild(tableHeader)

    var trWrapper = document.createElement('tr') // moved from below
    trWrapper.className = 'currency' // moved from below

    for (i = 0; i < data.length; i++) {
        var currentCurrency = data[i]
//      var trWrapper = document.createElement('tr')
//      trWrapper.className = 'currency'
        var name
        if (this.config.displayLongNames) {
            name = currentCurrency.name
        } else {
            name = currentCurrency.symbol
        }

        var tdValues = [
            name,
            currentCurrency.price,
        ]
        if (this.config.headers.indexOf('change1h') > -1) {
            tdValues.push(currentCurrency.percent_change_1h + '%')
        }
        if (this.config.headers.indexOf('change24h') > -1) {
            tdValues.push(currentCurrency.percent_change_24h + '%')
        }
        if (this.config.headers.indexOf('change7d') > -1) {
            tdValues.push(currentCurrency.percent_change_7d + '%')
        }

        for (var j = 0; j < tdValues.length; j++) {
            var tdWrapper = document.createElement('td')
            var currValue = tdValues[j]
            // If I am showing value then set color
            if (currValue.includes('%')) {
                tdWrapper.style.color = this.colorizeChange(currValue.slice(0,-1))
            }
            tdWrapper.innerHTML = currValue
            trWrapper.appendChild(tdWrapper)
        }
//      wrapper.appendChild(trWrapper)
    }
    wrapper.appendChild(trWrapper) // moved from above
    return wrapper
},

I’ve not run this code, as I don’t use MMM-cryptocurrency, but I think it should work. Just be careful when modifying your MMM-cryptocurrency.js to only replace the getDom() function. I also don’t think this should break any of the module’s functionality or styling.

Worst case, you can always use git checkout MMM-cryptocurrency.js to revert to the original version.

Update: I have taken the cowards way out and trimmed the currencies and duplicated the modules config into different regions of the config.js like top_left, top_center, and top_right. This has solved the issue.